NEET Biology Cell Cycle and Cell Division Question Bank

done Cell Division Total Questions - 152

• question_answer1)
  The term "meiosis'' was coined by
  A)
  Hertwig and Van Bevedin done clear
  B)
  Sutton and Boveri done clear
  C)
  Hofmeister and Waldeyer done clear
  D)
  Farmer and Moore done clear
  View Solution play_arrow

• question_answer2)
  Coiling of chromatids in mitotic and meiotic division is [MP PMT 2002]
  A)
  Paranemic in both done clear
  B)
  Plectonemic in both done clear
  C)
  Paranemic in mitosis and plectonemic in meiosis done clear
  D)
  Plectonemic in mitosis and paranemic in meiosis                done clear
  View Solution play_arrow

• question_answer3)
  As there occurs more and more condensation of chromatin during cell division, there occurs
  A)
  Increase in heterochromatin done clear
  B)
  Increase in euchromatin done clear
  C)
  Differentiation of heterochromatin and euchromatin decreases done clear
  D)
  Differentiation of heterochromatin and euchromatin increases done clear
  View Solution play_arrow

• question_answer4)
  Condensation of chromosomes occurs in [AFMC 2002]
  A)
  Prophase I done clear
  B)
  Prophase II done clear
  C)
  Anaphase done clear
  D)
  Metaphase done clear
  View Solution play_arrow

• question_answer5)
  The replication of nuclear DNA occurs in [Kashmir MEE 1995; CPMT 1996; MP PMT 1994]
  A)
  \[{{G}_{1}}\]phase done clear
  B)
  \[{{G}_{2}}\]phase done clear
  C)
  S phase done clear
  D)
  M phase done clear
  View Solution play_arrow

• question_answer6)
  The role of meiosis [AFMC 2002]
  A)
  Formation of gametes done clear
  B)
  Bringing haplophase done clear
  C)
  Bringing diplophase done clear
  D)
  Completing life cycle done clear
  View Solution play_arrow

• question_answer7)
  The number of DNA in chromosome at \[{{G}_{2}}\]stage of cell cycle [RPMT 2002]
  A)
  One done clear
  B)
  Two done clear
  C)
  Four done clear
  D)
  Eight done clear
  View Solution play_arrow

• question_answer8)
  Which stage connecting link between Meiosis I and Meiosis II [AFMC 2002]
  A)
  Interphase I done clear
  B)
  Interphase II done clear
  C)
  Interkinesis done clear
  D)
  Anaphase I done clear
  View Solution play_arrow

• question_answer9)
  Which of the following stage is affected by colchicum [BVP 2001; AFMC 2002; Pb. PMT 2004]
  A)
  Metaphase done clear
  B)
  Prophase done clear
  C)
  Interphase done clear
  D)
  Anaphase done clear
  View Solution play_arrow

• question_answer10)
  \[{{G}_{0}}\]state of cells in eukaryotic cell cycle denotes [AIEEE 2003]
  A)
  Check point before entering the next phase done clear
  B)
  Pausing in the middle of a cycle to cope with a temporary delay done clear
  C)
  Death of a cell done clear
  D)
  Exit of cells from cell cycle done clear
  View Solution play_arrow

• question_answer11)
  Synapsis is pairing of [MP PMT 2003]
  A)
  Any two chromosomes done clear
  B)
  Non homologous chromosomes done clear
  C)
  Acentric chromosomes done clear
  D)
  Homologous chromosomes done clear
  View Solution play_arrow

• question_answer12)
  Mitosis occurs in [RPMT 2002]
  A)
  Haploid individuals done clear
  B)
  Diploid individuals done clear
  C)
  Both (a) and (b) done clear
  D)
  In bacteria only done clear
  View Solution play_arrow

• question_answer13)
  Spindle apparatus is formed during which stage of mitosis [AFMC 1999]
  A)
  Prophase done clear
  B)
  Metaphase done clear
  C)
  Anaphase done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer14)
  Cyclin is associated with which one of the following [BHU 2000]
  A)
  Glycolysis done clear
  B)
  Cyclosis done clear
  C)
  Haemolysis done clear
  D)
  Mitosis done clear
  View Solution play_arrow

• question_answer15)
  For viewing diakinesis which one of the following would be a suitable material [MP PMT 2002]
  A)
  Onion root tip done clear
  B)
  Leaf of Dichanthium done clear
  C)
  Rat tail done clear
  D)
  Flower bud done clear
  View Solution play_arrow

• question_answer16)
  Which is not the character of mitosis [MP PMT 2000]
  A)
  Leptotene done clear
  B)
  Zygotene done clear
  C)
  Pachytene done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer17)
  Synaptonemal complex is formed during [CBSE PMT 2001]
  A)
  Meiosis done clear
  B)
  Amitosis done clear
  C)
  Mitosis done clear
  D)
  Cytokinesis done clear
  View Solution play_arrow

• question_answer18)
  Synaptonemal complex was discovered in [BHU 2000]
  A)
  1956 done clear
  B)
  1950 done clear
  C)
  1935 done clear
  D)
  1980 done clear
  View Solution play_arrow

• question_answer19)
  Recombinant nodules are found during which of the following [BHU 2000]
  A)
  Anaphase done clear
  B)
  Prophase done clear
  C)
  Telophase done clear
  D)
  Metaphase done clear
  View Solution play_arrow

• question_answer20)
  Four daughter cells formed after meiosis are [MP PMT 2001]
  A)
  Genetically similar done clear
  B)
  Genetically different done clear
  C)
  Anucleate done clear
  D)
  Multinucleate done clear
  View Solution play_arrow

• question_answer21)
  Bivalents in meiosis are [RPMT 2001]
  A)
  Tetrad done clear
  B)
  Pairs of non-homologous chromosomes done clear
  C)
  Pairs of several chromatids done clear
  D)
  Pairs of homozygous chromosomes done clear
  View Solution play_arrow

• question_answer22)
  Repulsion of homologous chromosomes takes place in [MP PMT 2001]
  A)
  Zygotene done clear
  B)
  Leptotene done clear
  C)
  Diakinesis done clear
  D)
  Diplotene done clear
  View Solution play_arrow

• question_answer23)
  Which cell division is found during cleavage [RPMT 2001]
  A)
  Amitosis done clear
  B)
  Mitosis done clear
  C)
  Closed mitosis done clear
  D)
  Meiosis done clear
  View Solution play_arrow

• question_answer24)
  Which type of cell division occurs in the gonads [RPMT 2001]
  A)
  Mitosis only done clear
  B)
  Meiosis done clear
  C)
  Both (a) and (b) done clear
  D)
  Amitosis and meiosis done clear
  View Solution play_arrow

• question_answer25)
  How many ATP is required during anaphase to move chromosomes from equator to the poles [BHU 2000]
  A)
  38 ATP done clear
  B)
  5 ATP done clear
  C)
  30 ATP done clear
  D)
  76 ATP done clear
  View Solution play_arrow

• question_answer26)
  Mitosis is the process by which eukaryotic cells [Pune CET 1998; CBSE PMT 2000; BHU 2000]
  A)
  Expose the genes for protein synthesis done clear
  B)
  Become specialized in structure and function done clear
  C)
  Multiply done clear
  D)
  Grow done clear
  View Solution play_arrow

• question_answer27)
  In pachytene stage of meiosis the chromosomes appear [BHU 2002]
  A)
  Single stranded done clear
  B)
  Double stranded done clear
  C)
  Three stranded done clear
  D)
  Four stranded done clear
  View Solution play_arrow

• question_answer28)
  The spindle fibre contracts in [KCET 1998]
  A)
  Metaphase I done clear
  B)
  Anaphase II done clear
  C)
  Prophase II done clear
  D)
  Telophase II done clear
  View Solution play_arrow

• question_answer29)
  Recombination of genes occur at [J & K CET 2002]
  A)
  Prophase in mitosis done clear
  B)
  Prophase I in meiosis done clear
  C)
  Prophase II in meiosis done clear
  D)
  Metaphase II in meiosis done clear
  View Solution play_arrow

• question_answer30)
  The second division in meiosis is called [KCET 1998]
  A)
  Equational division done clear
  B)
  Reduction division done clear
  C)
  Multiplied division done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer31)
  The meiotic process by which homologous chromosomes are paired during prophase I is called [Pune CET 1998]
  A)
  Interkinesis done clear
  B)
  Crossing over done clear
  C)
  Chiasma done clear
  D)
  Synapsis done clear
  View Solution play_arrow

• question_answer32)
  At what phase of meiosis are there two cells, each with sister chromatids aligned at the spindle equator [Pune CET 1998; BHU 1999]
  A)
  Anaphase II done clear
  B)
  Metaphase II done clear
  C)
  Metaphase I done clear
  D)
  Anaphase I done clear
  View Solution play_arrow

• question_answer33)
  If there were 4 chromosomes present during prophase, how many chromosomes are there in each cell at the end of anaphase II [Pune CET 1998]
  A)
  16 done clear
  B)
  4 done clear
  C)
  2 done clear
  D)
  8 done clear
  View Solution play_arrow

• question_answer34)
  If at the end of meiosis, the 4 daughter cells have 4 chromosomes, how many chromosomes were in the mother cell [Pune CET 1998]
  A)
  8 done clear
  B)
  16 done clear
  C)
  2 done clear
  D)
  4 done clear
  View Solution play_arrow

• question_answer35)
  How many time meiosis will take place for the formation of 80 wheat grains
  A)
  100 done clear
  B)
  80 done clear
  C)
  40 done clear
  D)
  99 done clear
  View Solution play_arrow

• question_answer36)
  In which type of cell division spindle formation does not occur
  A)
  Mitosis done clear
  B)
  Meiosis done clear
  C)
  Endomitosis done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer37)
  How may mitotic divisions must occur in a cell of root tip to form 256 cells
  A)
  256 done clear
  B)
  8 done clear
  C)
  128 done clear
  D)
  64 done clear
  View Solution play_arrow

• question_answer38)
  The best stage to count the number of chromosomes during mitosis is or structure of  chromosomes can be best seen at [BHU 2001; CPMT 2000; CBSE PMT 2004]
  A)
  Prophase done clear
  B)
  Metaphase done clear
  C)
  Anaphase done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer39)
  A repeated cycle of DNA replication without separation of daughter chromatids leads to the formation of
  A)
  Pachytene chromosome done clear
  B)
  Leptotene chromosomes done clear
  C)
  Polytene chromosome done clear
  D)
  Zygotene chromosomes done clear
  View Solution play_arrow

• question_answer40)
  Cytokinesis in plants takes place by the formation of
  A)
  Sphaeroblasts done clear
  B)
  Equatorial cell plate done clear
  C)
  Idioblasts done clear
  D)
  Cell budding done clear
  View Solution play_arrow

• question_answer41)
  In meiosis, the centromere divides during  [MP PMT 1997; 2001; BVP 2002]
  A)
  Prophase-I done clear
  B)
  Metaphase-I done clear
  C)
  Anaphase-I done clear
  D)
  Anaphase-II done clear
  View Solution play_arrow

• question_answer42)
  During interphase, RNA and proteins are synthesized in [MP PMT 1997]
  A)
  S phase done clear
  B)
  \[{{G}_{1}}\]phase done clear
  C)
  \[{{G}_{2}}\]phase done clear
  D)
  In both\[{{G}_{1}}\]and\[{{G}_{2}}\]phases done clear
  View Solution play_arrow

• question_answer43)
  Four chromatids and two centromeres which are homologous occurs in [CPMT 1995]
  A)
  Zygotene done clear
  B)
  Diplotene done clear
  C)
  Diakinesis done clear
  D)
  Pachytene done clear
  View Solution play_arrow

• question_answer44)
  The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with\[2n=50\]shall be[MP PMT 1995, 98]
  A)
  50 done clear
  B)
  25 done clear
  C)
  30 done clear
  D)
  100 done clear
  View Solution play_arrow

• question_answer45)
  The significance of meiosis lies in [MP PMT 1995, 98; BVP 2003]
  A)
  Reduction of the diploid number of chromosomes to haploid done clear
  B)
  Maintaining constancy in the number of diploid chromosomes during sexual reproduction done clear
  C)
  Production of genetic variability in the population of a species done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer46)
  Mitosis results in
  A)
  Reduction in chromosome number done clear
  B)
  Doubling of chromosome number done clear
  C)
  Constant chromosome number done clear
  D)
  Increase in cell volume done clear
  View Solution play_arrow

• question_answer47)
  In which phase of mitosis the chromosomes are  arranged around the equator of the spindle [Manipal MEE 1995]
  A)
  Prophase done clear
  B)
  Metaphase done clear
  C)
  Anaphase done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer48)
  Which one of the following pairs is correctly matched  [MP PMT 1993]
  A)
  Anaphase I Homologous chromosomes are separated done clear
  B)
  Metaphase I Pairing of maternal and paternal homologous chromosomes takes place done clear
  C)
  Interphase A nuclear envelope encloses each haploid set of chromo somes done clear
  D)
  Prophase I Non-homologous chromosomes are separated done clear
  View Solution play_arrow

• question_answer49)
  Mitosis and meiosis take place respectively in [AMU 1991]
  A)
  Meristem and gametangia done clear
  B)
  Gametangia and meristem done clear
  C)
  Permanent tissues and secretory tissues done clear
  D)
  Secretory tissues and permanent tissues done clear
  View Solution play_arrow

• question_answer50)
  An anaphase chromosome contains [DPMT 1991]
  A)
  1 DNA molecule done clear
  B)
  3 DNA molecule done clear
  C)
  2 DNA molecule done clear
  D)
  4 DNA molecule done clear
  View Solution play_arrow

• question_answer51)
  Match List I and List II and select the correct answer using the code given below in the lists : List I List II (Phase of meiosis) (Event that occurs) 1. Prophase I Crossing over occurs 2. Metaphase I Sister chromatids migrate to opposite poles 3. Anaphase I Homologous line up at equator in pairs Code: [MP PMT 1993]
  A)
  1, 2 and 3 are correct done clear
  B)
  1 and 2 are correct, 3 is false done clear
  C)
  1 is correct, 2 and 3 are false done clear
  D)
  1 and 3 are correct, 2 is false done clear
  View Solution play_arrow

• question_answer52)
  Chromosome number is halved in meiosis during
  A)
  Metaphase-I done clear
  B)
  Anaphase-I done clear
  C)
  Metaphase-II done clear
  D)
  Telophase-I done clear
  View Solution play_arrow

• question_answer53)
  Chromosome start separating at which stage of mitosis  [AFMC 1996]
  A)
  Early metaphase done clear
  B)
  Late metaphase done clear
  C)
  Early anaphase done clear
  D)
  Early telophase done clear
  View Solution play_arrow

• question_answer54)
  Normal cellular activities, such as protein synthesis occur primarily during [Pune CET 1998]
  A)
  Interphase done clear
  B)
  Anaphase done clear
  C)
  Metaphase done clear
  D)
  Prophase done clear
  View Solution play_arrow

• question_answer55)
  At\[{{G}_{1}}\]stage which phenomenon takes place [AFMC 1995]
  A)
  DNA synthesis done clear
  B)
  RNA synthesis done clear
  C)
  Reverse transcription done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer56)
  In mitosis the movement of chromosomes requires [CPMT 1993]
  A)
  Presence of centromere done clear
  B)
  Plasmalemma done clear
  C)
  Spindle fibres done clear
  D)
  Nucleotides done clear
  View Solution play_arrow

• question_answer57)
  DNA replication occurs  during [MDAT Bihar 1995; MP PMT 2005]
  A)
  Prophase done clear
  B)
  Metaphase done clear
  C)
  Anaphase done clear
  D)
  Interphase done clear
  E)
  Leptotene done clear
  View Solution play_arrow

• question_answer58)
  Terminalization occurs in which stage [AFMC 1995]
  A)
  Pachytene done clear
  B)
  Diplotene done clear
  C)
  Zygotene done clear
  D)
  Diakinesis done clear
  View Solution play_arrow

• question_answer59)
  Strasburger is famous for
  A)
  Discovery of cell division done clear
  B)
  Proposing the term nucleoplasm done clear
  C)
  Proposing the term cytoplasm done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer60)
  During cell division, sometimes there will be failure of separation of sister chromatids. This event is called  [Kerala PMT 2004]
  A)
  Interference done clear
  B)
  Complementation done clear
  C)
  Coincidence done clear
  D)
  Non-disjunction done clear
  View Solution play_arrow

• question_answer61)
  If a cell has a chromosome number after first meiosis equal to 48. The chromosome number in the daughter cells after the completion of meiosis will be [BHU 2001]
  A)
  48 done clear
  B)
  24 done clear
  C)
  12 done clear
  D)
  36 done clear
  View Solution play_arrow

• question_answer62)
  A cell in prophase of mitosis can be distinguished from a cell in prophase-I of meiosis by
  A)
  The presence of only half as many chromosomes in the meiotic cell done clear
  B)
  The formation of tetrads in the meiotic cell done clear
  C)
  The presence of twice as many chromosomes in the meiotic cell done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer63)
  In mitosis nucleolus and nuclear membrane disappear at [AFMC 1996]
  A)
  Interphase done clear
  B)
  Prophase done clear
  C)
  Metaphate done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer64)
  Chiasmata formation occurs during  [CPMT 1981, 89, 91, 2004; MP PMT 1984, 87, 94, 2002, 03]
  A)
  Diplotene done clear
  B)
  Leptotene done clear
  C)
  Pachytene done clear
  D)
  Diakinesis done clear
  View Solution play_arrow

• question_answer65)
  During the first metaphase of meiosis the centromeres [MP PMT 1994]
  A)
  Undergo division done clear
  B)
  Do not divide done clear
  C)
  Divide but do not separate done clear
  D)
  Are not identical done clear
  View Solution play_arrow

• question_answer66)
  The number of chromatids in a chromosome at anaphase is  [CBSE PMT 1992; BHU 1994; AFMC 1995]
  A)
  2 in mitosis and 1 in meiosis done clear
  B)
  1 in mitosis and 2 in meiosis done clear
  C)
  2 each in mitosis and meiosis done clear
  D)
  2 in mitosis and 4 in meiosis done clear
  View Solution play_arrow

• question_answer67)
  In mitosis the duplication of chromosomes occurs during [MP PMT 1994; BHU 2002]
  A)
  Early prophase done clear
  B)
  Late prophase done clear
  C)
  Interphase done clear
  D)
  Late telophase done clear
  View Solution play_arrow

• question_answer68)
  Cell division in blue-green algae is more or less similar to that in [MP PMT 1994]
  A)
  Red algae done clear
  B)
  Green algae done clear
  C)
  Brown algae done clear
  D)
  Bacteria done clear
  View Solution play_arrow

• question_answer69)
  Which out of the following is not a divisional stage  [DPMT 1991]
  A)
  Telophase done clear
  B)
  Interphase done clear
  C)
  Metaphase done clear
  D)
  Prophase done clear
  View Solution play_arrow

• question_answer70)
  When, during the meiotic division, do the homologous chromosomes pair with each other [MP PMT 1996]
  A)
  Leptotene done clear
  B)
  Pachytene done clear
  C)
  Zygotene done clear
  D)
  Metaphase-I done clear
  View Solution play_arrow

• question_answer71)
  Between mitosis a cell is called to be in the [AMU 1990]
  A)
  Resting stage done clear
  B)
  Sleeping stage done clear
  C)
  Active stage done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer72)
  The process of mitosis is divided into 4 phases. Identify the correct order in which these phases appear in mitosis [MP PMT 1993]
  A)
  Anaphase, metaphase, telophase and prophase done clear
  B)
  Telophase, anaphase, metaphase and prophase done clear
  C)
  Metaphase, prophase, anaphase and telophase done clear
  D)
  Prophase, metaphase, anaphase and telophase done clear
  View Solution play_arrow

• question_answer73)
  Meiosis and mitosis differ from each other because in meiosis [AMU 1991; CPMT 1993]
  A)
  The four nuclei formed are not similar to parental ones done clear
  B)
  Homologous chromosomes pair are exchange parts done clear
  C)
  Number of chromosomes gets halved done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer74)
  Cell division is initiated by [CBSE PMT 1993]
  A)
  Centrosome done clear
  B)
  Centriole done clear
  C)
  Centromere done clear
  D)
  Chromomere done clear
  View Solution play_arrow

• question_answer75)
  "Endomitosis'' refers to
  A)
  Division of nucleus without chromosomal division done clear
  B)
  Division of chromosome without nuclear division done clear
  C)
  Division of cytoplasm done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer76)
  The homologous chromosomes follow the process of synapsis in the stage or Pairing of homologous chromosome takes place in [DPMT 1990, 91; RPMT 1997; MP PMT 1999; BHU 2003; Haryana PMT 2005]
  A)
  Leptotene done clear
  B)
  Zygotene done clear
  C)
  Diplotene done clear
  D)
  Pachytene done clear
  View Solution play_arrow

• question_answer77)
  Crossing over is advantageous because it brings about [MP PMT 1992]
  A)
  Variation done clear
  B)
  Linkage done clear
  C)
  Inbreeding done clear
  D)
  Stability done clear
  View Solution play_arrow

• question_answer78)
  The process of mitosis can be studied in [CPMT 1998; MHCET 2001; CBSE PMT 2002]
  A)
  Onion root tip done clear
  B)
  Garlic root tip done clear
  C)
  Tendril tip done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer79)
  The process by which the chromosomes are separated in the sex cells and their number reduced from the diploid to haploid condition is known as [DPMT 1991]
  A)
  Division done clear
  B)
  Mitosis done clear
  C)
  Conjugation done clear
  D)
  Meiosis done clear
  View Solution play_arrow

• question_answer80)
  In which of the following stages chromosomes are attached on equatorial plane [CPMT 1998; Kerela CET 2002; BVP 2002]
  A)
  Metaphase done clear
  B)
  Anaphase done clear
  C)
  Telophase done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer81)
  Period of active mitosis ranges from [DPMT 1991]
  A)
  10 minutes to a few hours done clear
  B)
  A few hours to a one day done clear
  C)
  One day to a week done clear
  D)
  Less than a minute done clear
  View Solution play_arrow

• question_answer82)
  Meiosis was discovered by [Bihar MDAT 1994]
  A)
  Sutton done clear
  B)
  Hofmeister done clear
  C)
  Strasburger done clear
  D)
  Amici done clear
  View Solution play_arrow

• question_answer83)
  How many meiotic divisions will be necessary to produce two hundred pollen grains [DPMT 1992; MP PMT 1999]
  A)
  50 done clear
  B)
  100 done clear
  C)
  199 done clear
  D)
  150 done clear
  View Solution play_arrow

• question_answer84)
  Prophase of reduction division is divided into number of stages. The correct chronological sequence is         [CMC Vellore 1993; CPMT 1974, 96, 2000; KCET 1999; Orissa PMT 2002; HP PMT 2005]
  A)
  Leptotene - pachytene - zygotene - diplotene - diakinesis done clear
  B)
  Leptotene - diplotene - pachytene - zygotene - diakinesis done clear
  C)
  Leptotene - zygotene - diplotene - pachytene - diakinesis done clear
  D)
  Leptotene - zygotene - pachytene - diplotene - diakinesis done clear
  View Solution play_arrow

• question_answer85)
  If for a species 2n = 16, then during Ist  prophase and IInd prophase of meiotic division of a cell, how many tetrads and diads will be formed
  A)
  4 and 4 done clear
  B)
  8 and 4 done clear
  C)
  8 and 8 done clear
  D)
  4 and 8 done clear
  View Solution play_arrow

• question_answer86)
  Regarding the sequence of cell cycle, which one is correct [MP PMT 1998; AIIMS 1999; CPMT 2002]
  A)
  \[{{G}_{1}},\text{ }{{G}_{2}},SandM\] done clear
  B)
  \[S,\text{ }{{G}_{1}},\text{ }{{G}_{2}},\text{ }andM\] done clear
  C)
  \[{{G}_{1}},S,{{G}_{2}}andM\] done clear
  D)
  \[{{G}_{2}},S,{{G}_{1}},\text{ }andM\] done clear
  View Solution play_arrow

• question_answer87)
  Mitotic index means
  A)
  Rate of mitotic division done clear
  B)
  Ratio of mitotic and meiotic division done clear
  C)
  Ratio of dividing and non-dividing cells done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer88)
  Pachytene occurs during [MP PMT 1994]
  A)
  Meiosis done clear
  B)
  Mitosis done clear
  C)
  Growth of a cell done clear
  D)
  Formation of endosperm done clear
  View Solution play_arrow

• question_answer89)
  In which of the following meiosis takes place [MP PMT 1992]
  A)
  Pollen grains done clear
  B)
  Pollen tube done clear
  C)
  Pollen mother cells done clear
  D)
  Generative cells done clear
  View Solution play_arrow

• question_answer90)
  Which of the following is the shortest phase of the cell cycle
  A)
  S phase done clear
  B)
  \[{{G}_{1}}\]phase done clear
  C)
  \[{{G}_{2}}\]phase done clear
  D)
  M phase done clear
  View Solution play_arrow

• question_answer91)
  Which of the following position is the base to define the formation place of cell plate at the end of nuclear division [AMU 2005]
  A)
  Microtubulus done clear
  B)
  Vesicles done clear
  C)
  Endoplasmic reticulum done clear
  D)
  Golgi body done clear
  View Solution play_arrow

• question_answer92)
  \[{{G}_{2}}\]phase of mitosis takes [BVP 2003]
  A)
  50% time of cell cycle done clear
  B)
  25 to 33% time of cell cycle done clear
  C)
  12 to 16% time of cell cycle done clear
  D)
  4% time of cell cycle done clear
  View Solution play_arrow

• question_answer93)
  Which of the following will show simple cell division
  A)
  Microspore mother cells done clear
  B)
  Megaspore mother cells done clear
  C)
  Archesporial cells done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer94)
  The force responsible for the terminalization at the time of cell division is
  A)
  Chemostatic done clear
  B)
  Galvanostatic done clear
  C)
  Electrostatic done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer95)
  Interphase of mitosis in man takes
  A)
  12 hours done clear
  B)
  10 hours done clear
  C)
  3 hours done clear
  D)
  25 hours done clear
  View Solution play_arrow

• question_answer96)
  In animal cell cytokinesis takes place by
  A)
  Cell furrow method done clear
  B)
  Cell plate method done clear
  C)
  Both (a) and (b) done clear
  D)
  No cytokinesis takes place done clear
  View Solution play_arrow

• question_answer97)
  Prophase is longer in  [Manipal MEE 1995; CPMT 2001; MHCET 2001]
  A)
  Mitosis done clear
  B)
  Meiosis done clear
  C)
  Equal in both done clear
  D)
  Amitosis done clear
  View Solution play_arrow

• question_answer98)
  In one meiotic cell division, the cell divides
  A)
  Once done clear
  B)
  Twice done clear
  C)
  Thrice done clear
  D)
  Four times done clear
  View Solution play_arrow

• question_answer99)
  In pollen mother cells cytokinesis during meiosis is
  A)
  Successive type done clear
  B)
  Simultaneous type done clear
  C)
  In some cases successive type while in others simultaneous type done clear
  D)
  No cytokinesis takes place done clear
  View Solution play_arrow

• question_answer100)
  Mitotic crossing over takes place in
  A)
  Normal mitosis done clear
  B)
  Normal sexual cycle done clear
  C)
  Parasexual cycle done clear
  D)
  Lytic cycle done clear
  View Solution play_arrow

• question_answer101)
  The term "mitosis'' was proposed by
  A)
  Flemming done clear
  B)
  Farmer done clear
  C)
  Moore done clear
  D)
  Boveri done clear
  View Solution play_arrow

• question_answer102)
  In cancer cells [DPMT 1974]
  A)
  Meiosis takes place done clear
  B)
  Mitosis takes place done clear
  C)
  Sometimes meiosis and sometimes mitosis take place done clear
  D)
  Cell division stops done clear
  View Solution play_arrow

• question_answer103)
  Which of the following structure will not be common to mitotic cell of a higher plant [CBSE PMT 1997]
  A)
  Cell plate done clear
  B)
  Centromere done clear
  C)
  Centriole done clear
  D)
  Spindle fibre done clear
  View Solution play_arrow

• question_answer104)
  How many mitotic divisions are needed for a single cell to make 128 cells [CBSE PMT 1997; AFMC 1999]
  A)
  7 done clear
  B)
  14 done clear
  C)
  28 done clear
  D)
  32 done clear
  View Solution play_arrow

• question_answer105)
  Which one of the following forms the spindle apparatus during cell division [Kerala CET 2002]
  A)
  Chromosome done clear
  B)
  Centrosome done clear
  C)
  Ribosome done clear
  D)
  Chondriosome done clear
  View Solution play_arrow

• question_answer106)
  During cell division in apical meristem nuclear membrane reappears in [CBSE PMT 1997]
  A)
  Interphase done clear
  B)
  Telophase done clear
  C)
  Prophase done clear
  D)
  S phase done clear
  View Solution play_arrow

• question_answer107)
  Meiosis is significant because
  A)
  It produces identical cells done clear
  B)
  It restores the original number of chromosomes (after fertilization) done clear
  C)
  There is doubling of DNA contents in the cell done clear
  D)
  It occurs only in vegetative cells done clear
  View Solution play_arrow

• question_answer108)
  How many reduction divisions are necessary for the formation of 200 grains of wheat [MHCET 2002]
  A)
  250 done clear
  B)
  150 done clear
  C)
  200 done clear
  D)
  360 done clear
  View Solution play_arrow

• question_answer109)
  In mitotic cell division
  A)
  Number of chromosomes is doubled at the end done clear
  B)
  Number of chromosomes is reduced to half done clear
  C)
  Number of chromosomes remain unchanged done clear
  D)
  There is no division of chromosomes done clear
  View Solution play_arrow

• question_answer110)
  Meiosis differs from mitosis as
  A)
  It takes place in vegetative cells done clear
  B)
  It shows crossing over done clear
  C)
  It forms two cells done clear
  D)
  Number of chromosomes remain unchanged done clear
  View Solution play_arrow

• question_answer111)
  During mitosis chromosomes go to their poles in a stage called          [CPMT 1994; MP PMT 2001; DPMT 2003; BHU 2004]
  A)
  Prophase done clear
  B)
  Metaphase done clear
  C)
  Anaphase done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer112)
  When, during the meiotic division, do the centromeres divide   [MP PMT 1996; CBSE PMT 2000]
  A)
  Diplotene done clear
  B)
  Metaphase-I done clear
  C)
  Pachytene done clear
  D)
  Anaphase-II done clear
  View Solution play_arrow

• question_answer113)
  DNA replication takes place in [CPMT 1991, 2001; BHU 1981; CBSE PMT 1996, 2001; or DNA molecule of each chromosome become double in  RPMT 1997; Bihar MDAT 1992;Pb. PMT 1999; MP PMT 1999, 2001, 02]
  A)
  \[{{G}_{1}}\] phase done clear
  B)
  \[{{G}_{2}}\] phase done clear
  C)
  S phase done clear
  D)
  Mitotic phase done clear
  View Solution play_arrow

• question_answer114)
  What happens in mitosis
  A)
  Many divisions of a nucleus done clear
  B)
  Cleavage of cytoplasm done clear
  C)
  Nuclear and cytoplasmic division done clear
  D)
  Formation of a paternal nucleus done clear
  View Solution play_arrow

• question_answer115)
  The number of chromosomes after I phase of meiotic division in reduction division [CPMT 1992, 94]
  A)
  Remain unchanged done clear
  B)
  Become doubled done clear
  C)
  Become halved done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer116)
  Meiosis can be observed in  [CPMT 1994; MP PMT 1996]
  A)
  Root tips done clear
  B)
  Cambium done clear
  C)
  Anther (PMC) done clear
  D)
  Pollen grains done clear
  View Solution play_arrow

• question_answer117)
  The decision for division occurs in a cell at
  A)
  S phase done clear
  B)
  \[{{G}_{2}}\]phase done clear
  C)
  \[{{G}_{1}}\]phase done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer118)
  Cellular structure always disappears during mitosis is [DPMT 1990]
  A)
  Cell wall done clear
  B)
  Cell membrane done clear
  C)
  Nucleolus done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer119)
  Which of the following cell division is found in prokaryotic cells
  A)
  Mitosis done clear
  B)
  Meiosis done clear
  C)
  Amitosis done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer120)
  Phragmoplast is precursor of  [MP PMT 1994; MHCET 2001; Orissa JEE 2004]
  A)
  Cell plate done clear
  B)
  Chloroplast done clear
  C)
  Chromoplast done clear
  D)
  Colourless plastid done clear
  View Solution play_arrow

• question_answer121)
  Cell plate is referred as [DPMT 1981; JIPMER 2002]
  A)
  Germplast done clear
  B)
  Idioblast done clear
  C)
  Phragmoplast done clear
  D)
  Middle lamella done clear
  View Solution play_arrow

• question_answer122)
  The replication of centrioles occurs during [MP PMT 1994; BHU 2004]
  A)
  Early prophase done clear
  B)
  Late prophase done clear
  C)
  Late telophase done clear
  D)
  Interphase done clear
  View Solution play_arrow

• question_answer123)
  Karyokinesis differ from cytokinesis because it involves [MP PMT 1994, 2003]
  A)
  Division of cytoplasm done clear
  B)
  Division of the nucleus and cytoplasm done clear
  C)
  Division of the nucleus done clear
  D)
  Division of the cell done clear
  View Solution play_arrow

• question_answer124)
  If nucleus represents its large size in proportion to cytoplasm of cell, it indicates that
  A)
  Cell is dying done clear
  B)
  The nucleolus is in resting phase done clear
  C)
  The nucleus has entered S-phase of interphase done clear
  D)
  Cell is about to die done clear
  View Solution play_arrow

• question_answer125)
  The nuclear membrane disappears in [CPMT 1993; MP PMT 1995, 98; J&K CET 2002]
  A)
  Metaphase done clear
  B)
  Early prophase done clear
  C)
  Late prophase done clear
  D)
  Anaphase done clear
  View Solution play_arrow

• question_answer126)
  Chromonemata start associating into bivalent chromosomes during [MP PMT 1997; J&K CET 2002]
  A)
  Zygotene done clear
  B)
  Leptotene done clear
  C)
  Pachytene done clear
  D)
  Diplotene done clear
  View Solution play_arrow

• question_answer127)
  An acrocentric chromosome at metaphase will be
  A)
  Condensed and lie near the equator done clear
  B)
  Irregularly shaped and lie at one of the poles done clear
  C)
  Condensed and lie at poles done clear
  D)
  Coiled and get attached to spindle fibre done clear
  View Solution play_arrow

• question_answer128)
  Constancy of the chromosome number in successive generations is brought by the process of  [AMU 1990; MP PMT 2003]
  A)
  Mitosis done clear
  B)
  Meiosis done clear
  C)
  Conjugation done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer129)
  In an organism, if the normal diploid number of chromosomes is 8, how many chromatids are present in each daughter cell at the end of meiosis I [MP PMT 1993]
  A)
  2 done clear
  B)
  4 done clear
  C)
  8 done clear
  D)
  16 done clear
  View Solution play_arrow

• question_answer130)
  The study of chromosomes at meiotic diplotene shows that [CMC Vellore 1993; AIIMS 1985]
  A)
  The intimately paired chromosomes repel each other and begin to separate done clear
  B)
  The pairing of homologous chromosomes which had initiated in the earlier stage is completed done clear
  C)
  The homologous chromosomes remain united by chiasmata done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer131)
  The points at which crossing over has taken place between homologous chromosomes are called [Pune CET 1998; BHU 2001]
  A)
  Protein axis done clear
  B)
  Synaptonemal complexes done clear
  C)
  Chiasmata done clear
  D)
  Centromeres done clear
  View Solution play_arrow

• question_answer132)
  How many meiotic division would be required to produce 101 female gametophytes in an angiosperm [Pb. PMT 1997]
  A)
  101 done clear
  B)
  26 done clear
  C)
  127 done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer133)
  Which effect is imparted by colchicine
  A)
  Duplication of DNA done clear
  B)
  Duplication in number of chromosomes done clear
  C)
  Formation of spindle fibres done clear
  D)
  Inhibits cell plate formation done clear
  View Solution play_arrow

• question_answer134)
  In which of the following stage, the chromosome is thin and like long thread [AFMC 1997]
  A)
  Leptotene done clear
  B)
  Zygotene done clear
  C)
  Pachytene done clear
  D)
  Diakinesis done clear
  View Solution play_arrow

• question_answer135)
  Exchange of chromosome segments between maternal and paternal chromatids during meiosis is called  [DPMT 1990; CBSE PMT 2000]
  A)
  Linkage done clear
  B)
  Dominance done clear
  C)
  Crossing over done clear
  D)
  DNA multiplication done clear
  View Solution play_arrow

• question_answer136)
  Spindle fibres are made up of [MP PMT 1986; AIIMS 2001]
  A)
  Proteins done clear
  B)
  Cellulose done clear
  C)
  Lipids done clear
  D)
  Pectin done clear
  View Solution play_arrow

• question_answer137)
  Anastral mitosis is found in [MHCET 2001]
  A)
  Animals done clear
  B)
  Higher plants done clear
  C)
  Bacteria done clear
  D)
  Cyanobacteria done clear
  View Solution play_arrow

• question_answer138)
  Which is not true for anaphase [Orissa JEE 2004]
  A)
  Golgi body and ER are reformed done clear
  B)
  Chromosomes move to opposite poles done clear
  C)
  Spindle poles move farther apart done clear
  D)
  Centromeres split and chromatids separate done clear
  View Solution play_arrow

• question_answer139)
  In which phase proteins for spindle fibre formation are synthesized [Orissa JEE 2004]
  A)
  \[{{G}_{1}}\]phase done clear
  B)
  \[{{G}_{2}}\]phase done clear
  C)
  S-phase done clear
  D)
  Anaphase done clear
  View Solution play_arrow

• question_answer140)
  In eukaryotic cell cycle, cell fusion experiments show that  [AIEEE 2004]
  A)
  When an S-phase cell is fused with a \[{{G}_{1}}-\]phase cell, \[{{G}_{1}}-\]phase cell is stimulated to synthesize DNA done clear
  B)
  When an S-phase cell is fused with a G1-phase cell done clear
  C)
  When a \[{{G}_{1}}-\]phase cell is fused with a \[{{G}_{1}}-\]phase cell, DNA synthesis is induced in both \[{{G}_{1}}\] and \[{{G}_{2}}\] phase cells done clear
  D)
  When a \[{{G}_{1}}-\]phase cell is fused with an M-phase done clear
  View Solution play_arrow

• question_answer141)
  Which is synthesized in \[{{G}_{1}}\] phase [CPMT 2004]
  A)
  DNA polymerase done clear
  B)
  Histones done clear
  C)
  Nucleolar DNA done clear
  D)
  Tubulin protein done clear
  View Solution play_arrow

• question_answer142)
  DNA and histone proteins are synthesized during the following phase of cell cycle [DPMT 2004; CBSE PMT 2005]
  A)
  S phase done clear
  B)
  \[{{G}_{2}}\]phase done clear
  C)
  \[{{G}_{1}}\]phase done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer143)
  At which phase of meiosis, the two cells, each with separated sister chromatids move towards opposite poles [Pb. PMT 2004]
  A)
  Metaphase I done clear
  B)
  Metaphase II done clear
  C)
  Anaphase I done clear
  D)
  Anaphase II done clear
  View Solution play_arrow

• question_answer144)
  Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle [CBSE PMT 2004]
  A)
  Formation of the contractile ring, and formation of the phragmoplast done clear
  B)
  Formation of the contractile ring, and transcription from chromosomes done clear
  C)
  Decondensation from chromosomes, and reassembly of the nuclear lamine done clear
  D)
  Transcription from chromosomes, and ressembly of the nuclear lamina done clear
  View Solution play_arrow

• question_answer145)
  In the somatic cell cycle [CBSE PMT 2004]
  A)
  A short interphase is followed by a long mitotic phase done clear
  B)
  \[{{G}_{2}}\]phase follows mitotic phase  done clear
  C)
  In \[{{G}_{1}}\]phase DNA content is double the amount of DNA present in the original cell done clear
  D)
  DNA replication takes place in S-phase done clear
  View Solution play_arrow

• question_answer146)
  During cell division chromosome attaches with spindles  [Manipal 2005]
  A)
  Kinetochore done clear
  B)
  Centrosome done clear
  C)
  Centriole done clear
  D)
  Secondary constriction done clear
  View Solution play_arrow

• question_answer147)
  During the meiotic division the [BHU 2005]
  A)
  Homologous chromosomes are separated done clear
  B)
  The linkage is disturbed done clear
  C)
  The homologous chromosomes do not segregate done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer148)
  During the\[{{G}_{1}}\]phase of cell division [BHU 2005]
  A)
    RNA and proteins are synthesized done clear
  B)
  DNA and proteins are synthesized done clear
  C)
  Cell prepares for M-phase done clear
  D)
  Cell undergoes duplication done clear
  View Solution play_arrow

• question_answer149)
  Meiosis is found at [MP PMT 2005]
  A)
  Shoot apex done clear
  B)
  Reproductive part done clear
  C)
  Leaves bud done clear
  D)
  Vegetative parts done clear
  View Solution play_arrow

• question_answer150)
  Homologous pairing in prophase I of meiosis I is called [MP PMT 2005]
  A)
  Synapsis done clear
  B)
  Linkage done clear
  C)
  Crossing over done clear
  D)
  Syndesis done clear
  View Solution play_arrow

• question_answer151)
  In meiosis the daughter cells are not similar to that of parent because of [AFMC 2005]
  A)
  Crossing over done clear
  B)
  Synapsis done clear
  C)
  Both (a) and (b) done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer152)
  Diploid living organism develops from zygote by repeated cell divisions is called [J&K CET 2005]
  A)
  Meiosis done clear
  B)
  Amitosis done clear
  C)
  Mitosis done clear
  D)
  Segmentation done clear
  View Solution play_arrow