-
question_answer1)
Controlling centre of cell is [AFMC 1996]
A)
Nucleus done
clear
B)
Nucleolus done
clear
C)
Mitochondria done
clear
D)
Ribosome done
clear
View Solution play_arrow
-
question_answer2)
The role of nucleus in regulating the morphology of plant was discovered in [DPMT 1982; MHCET 2001]
A)
Maize done
clear
B)
Garden pea done
clear
C)
Neurospora done
clear
D)
Acetabularia done
clear
View Solution play_arrow
-
question_answer3)
Nucleolus is found in [AMU 1990]
A)
Protoplasm done
clear
B)
Nucleus done
clear
C)
Cytoplasm done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer4)
The function of nucleolus is the synthesis of [MP PMT 1994, 97; CPMT 2001]
A)
DNA done
clear
B)
m-RNA done
clear
C)
r-RNA done
clear
D)
t-RNA done
clear
View Solution play_arrow
-
question_answer5)
Nuclear material without nuclear membrane is observed in [MP PMT 1994]
A)
Bacteria and green algae done
clear
B)
Cyanobacteria and red algae done
clear
C)
Bacteria and cyanobacteria done
clear
D)
Mycoplasmas and green algae done
clear
View Solution play_arrow
-
question_answer6)
The nucleoplasm is continuous with the cytoplasm of a cell through [MP PMT 1994]
A)
Centriole done
clear
B)
Endoplasmic reticulum done
clear
C)
Nuclear pores done
clear
D)
Golgi apparatus done
clear
View Solution play_arrow
-
question_answer7)
The term 'nucleolus' was coined by [AFMC 2001]
A)
R. Brown done
clear
B)
H. Hooks done
clear
C)
Bowman done
clear
D)
Hanstein done
clear
View Solution play_arrow
-
question_answer8)
Karyolymph is a [Pb. PMT 2000]
A)
Nuclear sap done
clear
B)
SPM membrane done
clear
C)
Nuclear pore done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer9)
The nuclear spindle consists of [MP PMT 1995, 98]
A)
One type of fibre done
clear
B)
Two types of fibres done
clear
C)
Three types of fibres done
clear
D)
Four types of fibres done
clear
View Solution play_arrow
-
question_answer10)
Watson has calculated the nuclear pores of the mammalian cells to be ...... of the total surface area of the nucleus
A)
5 percent done
clear
B)
50 percent done
clear
C)
25 percent done
clear
D)
10 percent done
clear
View Solution play_arrow
-
question_answer11)
The "master mind'' of the cell is
A)
Protoplast done
clear
B)
Nucleolus done
clear
C)
Nucleus done
clear
D)
Plastid done
clear
View Solution play_arrow
-
question_answer12)
Pars amorpha is associated with [CMC Vellore 1994]
A)
Nucleus done
clear
B)
Chloroplast done
clear
C)
Mitochondria done
clear
D)
Nucleolus done
clear
View Solution play_arrow
-
question_answer13)
Nucleoli are rich in [CPMT 1982; CBSE PMT 1993; BHU 2001; MP PMT 2003]
A)
DNA and RNA done
clear
B)
DNA, RNA and proteins done
clear
C)
DNA done
clear
D)
RNA done
clear
View Solution play_arrow
-
question_answer14)
Histone proteins found in nuclei of eukaryotes are [CPMT 2000]
A)
Acidic done
clear
B)
Basic done
clear
C)
Neutral done
clear
D)
Amphoteric done
clear
View Solution play_arrow
-
question_answer15)
The structure of nuclear membrane facilitates [CPMT 1985, 2002]
A)
Synapsis of homologous chromosomes at meiosis done
clear
B)
Nucleo-cytoplasmic exchange of materials done
clear
C)
Anaphasic separation of daughter chromosomes done
clear
D)
Organization of spindles done
clear
View Solution play_arrow
-
question_answer16)
The nucleus has [CBSE PMT 1993]
A)
One membrane with pores done
clear
B)
Two membranes with pores done
clear
C)
Two membranes with pores through which substances do not pass done
clear
D)
Two membranes with pores through which macromolecules may pass done
clear
View Solution play_arrow
-
question_answer17)
Nucleus is absent in
A)
Sieve tubes done
clear
B)
Companion cells done
clear
C)
Chlorenchyma done
clear
D)
All the above done
clear
View Solution play_arrow
-
question_answer18)
True nucleus is absent in [CPMT 1987]
A)
Green algae done
clear
B)
Fungi done
clear
C)
Lichens done
clear
D)
Bacteria done
clear
View Solution play_arrow
-
question_answer19)
Cell which does not contain nuclear membrane
A)
Bacteria done
clear
B)
Algae done
clear
C)
Fungi done
clear
D)
Lichen done
clear
View Solution play_arrow
-
question_answer20)
What will happen if nucleus is removed
A)
The metabolism will increase done
clear
B)
The cell will die done
clear
C)
The metabolism will decrease done
clear
D)
None of the above done
clear
View Solution play_arrow
-
question_answer21)
Amount of which one of the following is more in the nucleus but less in the chromosome
A)
DNA done
clear
B)
RNA done
clear
C)
Histone proteins done
clear
D)
Non-histone proteins done
clear
View Solution play_arrow
-
question_answer22)
In nucleoplasm, a conspicuous body of spherical shape attached to a particular chromosome on a definite position is called [AIIMS 1998]
A)
Plasmid done
clear
B)
Karyolymph done
clear
C)
Nucleolus done
clear
D)
Nuclear reticulumg done
clear
View Solution play_arrow
-
question_answer23)
Width of perinuclear space is
A)
\[\text{30}\,\,\text{to}\,\,\text{50}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
B)
\[\text{50}\,\,\text{to}\,\,\text{80}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
C)
\[\text{100}\,\,\text{to}\,\,\text{300}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
D)
\[\text{300}\,\,\text{to}\,\,\text{1000}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
View Solution play_arrow
-
question_answer24)
Who showed that the nuclear membrane has many pores or circular structures or annuli
A)
Fawcell done
clear
B)
Strasburger done
clear
C)
Butchen done
clear
D)
Callan and Tomlin done
clear
View Solution play_arrow
-
question_answer25)
Nucleolemma is a part of
A)
Nuclear membrane done
clear
B)
Nuclear reticulum done
clear
C)
Nucleolus done
clear
D)
Nucleoplasm done
clear
View Solution play_arrow
-
question_answer26)
Pore size of nuclear membrane is
A)
\[\text{100}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
B)
\[\text{200}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
C)
\[\text{300}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
D)
\[\text{400}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done
clear
View Solution play_arrow
-
question_answer27)
Study of nuclear cytology is called [JIPMER 1993]
A)
Neurology done
clear
B)
Karyology done
clear
C)
Mycology done
clear
D)
Rhinology done
clear
View Solution play_arrow
-
question_answer28)
In which of the following places messenger RNA is formed in a living cell
A)
Inside mitochondria done
clear
B)
Inside nucleolus done
clear
C)
Inside nucleus but outside nucleolus done
clear
D)
Inside endoplasmic reticulum done
clear
View Solution play_arrow
-
question_answer29)
An undefined or undifferentiated fibrillar nucleus is seen in [CPMT 1986]
A)
Eukaryotic cells done
clear
B)
Prokaryotic cells done
clear
C)
Cells of higher organisms done
clear
D)
Cells of higher plants done
clear
View Solution play_arrow
-
question_answer30)
Nucleoproteins in a cell are synthesized in [CBSE PMT 1989]
A)
Outside the nucleolus done
clear
B)
Nucleoplasm done
clear
C)
Nuclear membrane done
clear
D)
Nucleolus done
clear
View Solution play_arrow
-
question_answer31)
The condition when a large number of nucleus are found due to the absence of cytpolasmic division (which happens after telophase stage). This condition are called [AMU 2005]
A)
Polyploidy done
clear
B)
Syncytium done
clear
C)
Heterokaryon done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer32)
Which type of protein is found in nucleus
A)
Simple protein done
clear
B)
Structural protein done
clear
C)
Conjugated protein done
clear
D)
Derived protein done
clear
View Solution play_arrow
-
question_answer33)
Which of the following regulates and governs the physiological processes of the cell [CPMT 1975]
A)
Protoplast done
clear
B)
Nucleolus done
clear
C)
Mitochondria done
clear
D)
Nucleus done
clear
View Solution play_arrow
-
question_answer34)
Nucleus is enclosed in [MP PMT 1997]
A)
Double and non-porous layer done
clear
B)
Double and porous layer done
clear
C)
Single and non-porous layer done
clear
D)
Single and porous layer done
clear
View Solution play_arrow
-
question_answer35)
DNA is mainly found in [CBSE PMT 1999]
A)
Nucleus only done
clear
B)
Nucleus and cytoplasm done
clear
C)
Cytoplasm only done
clear
D)
All of these done
clear
View Solution play_arrow
-
question_answer36)
Which of the following is not contained in a eukaryotic nucleus [MHCET 2002]
A)
Nucleosome done
clear
B)
Nucleolus done
clear
C)
Chromatin done
clear
D)
Circular DNA molecules done
clear
View Solution play_arrow
-
question_answer37)
Nucleolus in eukaryotic cells is [AIEEE 2004]
A)
Visible in metaphase done
clear
B)
The site for synthesis of RNA polymerase done
clear
C)
Bounded by a memebrane done
clear
D)
The side of packaging of rRNAs with ribosomal proteins done
clear
View Solution play_arrow
-
question_answer38)
The nucleus is separated from surrounding cytoplasm by a nuclear membrane, which is [Pb. PMT 2004]
A)
Single layered with pores done
clear
B)
Single layered without pores done
clear
C)
Double layered with pores done
clear
D)
Double layered without pores done
clear
View Solution play_arrow
-
question_answer39)
Pars granulosa of nucleoplasm is made up of [AMU 2005]
A)
DNA done
clear
B)
RNA done
clear
C)
Protein done
clear
D)
Protein and carbohydrate done
clear
View Solution play_arrow
-
question_answer40)
The sex chromosomes of plants were first discovered in [CMC Vellore 1993]
A)
Algae done
clear
B)
Fungi done
clear
C)
Pteridophyta done
clear
D)
Flowering plants done
clear
View Solution play_arrow
-
question_answer41)
In which kind of study is banding done [MP PMT 2002]
A)
Creation of new species done
clear
B)
Production of disease resistant variety done
clear
C)
Mapping of chromosomes done
clear
D)
Artificial pollination done
clear
View Solution play_arrow
-
question_answer42)
Minimum haploid numbers of chromosomes in plant kingdom [RPMT 1999]
A)
3 done
clear
B)
2 done
clear
C)
1 done
clear
D)
4 done
clear
View Solution play_arrow
-
question_answer43)
A chromosome in which the centromere is situated near one end is known as [MP PMT 1998, 2002; AIIMS 2002]
A)
Telocentric done
clear
B)
Acrocentric done
clear
C)
Submetacentric done
clear
D)
Metacentric done
clear
View Solution play_arrow
-
question_answer44)
L-shaped chromosomes are called [MP PMT 1999; BHU 2004]
A)
Sex chromosome done
clear
B)
Acrocentric done
clear
C)
Telocentric done
clear
D)
Sub-metacentric done
clear
View Solution play_arrow
-
question_answer45)
Spindle chromosomes have [CBSE PMT 2000]
A)
Centriole done
clear
B)
Kinetochore done
clear
C)
Chromocentre done
clear
D)
Chromomere done
clear
View Solution play_arrow
-
question_answer46)
Supercoiled structure of eucaryotic chromosome is explained by
A)
Taylor model done
clear
B)
Freese-Taylor model done
clear
C)
Nucleosome model done
clear
D)
Nebel model done
clear
View Solution play_arrow
-
question_answer47)
Kinetochore is present in
A)
Mitochondria done
clear
B)
Chromosomes done
clear
C)
Lysosomes done
clear
D)
Sphaerosomes done
clear
View Solution play_arrow
-
question_answer48)
A chromosome having sub-terminal centromere is called [MP PMT 1997]
A)
Telocentric done
clear
B)
Acrocentric done
clear
C)
Metacentric done
clear
D)
Sub-metacentric done
clear
View Solution play_arrow
-
question_answer49)
Four different types of chromosomes but of the same size are serialized as [MP PMT 1995]
A)
Telocentric, metacentric, acrocentric, submetacentric done
clear
B)
Metacentric, acrocentric, submetacentric, telocentric done
clear
C)
Metacentric, submetacentric, acrocentric, telocentric done
clear
D)
Metacentric, telocentric, acrocentric, submetacentric done
clear
View Solution play_arrow
-
question_answer50)
The beaded appearance of chromosome is known as
A)
Centromere done
clear
B)
Chromomere done
clear
C)
Centriole done
clear
D)
Centrosphere done
clear
View Solution play_arrow
-
question_answer51)
Which of the following are used to define the karyotype of a species 1. The number of chromosomes 2. The chromosome length 3. The positions of the centromeres Code : [MP PMT 1993]
A)
1, 2 and 3 are correct done
clear
B)
Only 1 and 2 are correct done
clear
C)
Only 2 and 3 are correct done
clear
D)
Only 1 and 3 are correct done
clear
View Solution play_arrow
-
question_answer52)
Chromosomes always exist [AMU 1990]
A)
In pairs done
clear
B)
In association with mitochondria done
clear
C)
Singly done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer53)
Spindle fibres attach to chromosomes at their [MP PMT 1993; Pb. PMT 2000]
A)
Telomeres done
clear
B)
Chromomeres done
clear
C)
Kinetochores done
clear
D)
Centromeres done
clear
View Solution play_arrow
-
question_answer54)
In a cell that is not dividing, the chromosomes are visible as a tangle of fine threads called [MP PMT 1993]
A)
Microtubules done
clear
B)
Chromatin done
clear
C)
Microfilaments done
clear
D)
Nucleotin done
clear
View Solution play_arrow
-
question_answer55)
A tetrad consists of [MP PMT 1993]
A)
Four non-homologous chromatids done
clear
B)
Four non-homologous chromosomes done
clear
C)
Two sets of homologous chromosomes, each with two chromatids done
clear
D)
Four homologous pairs of chromosomes done
clear
View Solution play_arrow
-
question_answer56)
Centromere is concerned with [BHU 1980; CBSE PMT 2005]
A)
Splitting of chromosomes done
clear
B)
Formation of spindle fibres done
clear
C)
Movement of chromosomes to poles done
clear
D)
Duplication of DNA done
clear
View Solution play_arrow
-
question_answer57)
Basic structure of chromatin is composed of [MP PMT 1999, 2001]
A)
Non-histone proteins wrapped around DNA done
clear
B)
Histone proteins wrapped around DNA done
clear
C)
RNA wrapped around histones done
clear
D)
DNA wrapped around histones done
clear
View Solution play_arrow
-
question_answer58)
Heterosome is called
A)
Somatic chromosome done
clear
B)
B chromosome done
clear
C)
Sex chromosome done
clear
D)
Giant chromosome done
clear
View Solution play_arrow
-
question_answer59)
Centromere is part of [CBSE PMT 1997; BHU 2002; MP PMT 2003]
A)
Ribosomes done
clear
B)
Mitochondria done
clear
C)
Chromosome done
clear
D)
Endoplasmic reticulum done
clear
View Solution play_arrow
-
question_answer60)
Tips of chromosome are called [MP PMT 1999; CPMT 1978; DPMT 1990]
A)
Centromere done
clear
B)
Chromomere done
clear
C)
Telomere done
clear
D)
Metamere done
clear
View Solution play_arrow
-
question_answer61)
Polytene chromosomes in salivary glands of Drosophila are formed as a result of [Kerala PMT 2004]
A)
Endoduplication done
clear
B)
Duplication without separation done
clear
C)
Replication of DNA without cell division done
clear
D)
All the above done
clear
E)
None of these done
clear
View Solution play_arrow
-
question_answer62)
Minimum number of chromosomes are present in
A)
Haplopappus done
clear
B)
Helianthus done
clear
C)
Tagetus done
clear
D)
Lotus done
clear
View Solution play_arrow
-
question_answer63)
The arrangement of genes on chromosomes is [CPMT 1980]
A)
Linear done
clear
B)
Ovoid done
clear
C)
Diffused done
clear
D)
Spiral done
clear
View Solution play_arrow
-
question_answer64)
Chromosomes whose arms are equal are called [KCET 1999]
A)
Metacentric done
clear
B)
Acrocentric done
clear
C)
Concentric done
clear
D)
Acentric done
clear
View Solution play_arrow
-
question_answer65)
Structure present over the chromosomes is [MP PMT 1995]
A)
Nucleolus done
clear
B)
Centromere done
clear
C)
Centrosome done
clear
D)
Golgi complex done
clear
View Solution play_arrow
-
question_answer66)
Autosome is
A)
Achromatic done
clear
B)
Sex chromosome done
clear
C)
Chromosome other than sex chromosome done
clear
D)
Not a chromosome done
clear
View Solution play_arrow
-
question_answer67)
DNA genetic material occurs by itself in lower organisms and combined with proteins as nucleoproteins in higher organisms. The nucleoprotein is organized in higher forms to form
A)
Chromosome done
clear
B)
Nucleolus done
clear
C)
Nucleotides done
clear
D)
Nucleoside done
clear
View Solution play_arrow
-
question_answer68)
Identify the correct match between types of chromosomes and their descriptions
| Chromosomes | | Position of centromere |
A. | Metacentric | 1. | At the tip |
B. | Submetacentric | 2. | Almost near the tip |
C. | Acrocentric | 3. | At the middle |
D. | Telocentric | 4. | Slightly away from the middle |
Description [Kerala PMT 2004]
A)
A-1, B-3, C-2, D-4 done
clear
B)
A-4, B-3, C-2, D-1 done
clear
C)
A-1, B-2, C-3, D-4 done
clear
D)
A-4, B-3, C-1, D-2 done
clear
E)
A-3, B-4, C-2, D-1 done
clear
View Solution play_arrow
-
question_answer69)
Centromere may also be called as
A)
Centriole done
clear
B)
Locus done
clear
C)
Satellite body done
clear
D)
Primary constriction done
clear
View Solution play_arrow
-
question_answer70)
The part which does not take strain amongst the following is [CPMT 1993]
A)
Chromatid done
clear
B)
Centromere done
clear
C)
Chromatin done
clear
D)
Chromomere done
clear
View Solution play_arrow
-
question_answer71)
The telomeres of eukaryotic chromosomes consist of short sequences of [CBSE PMT 2004]
A)
Adenine rich repeats done
clear
B)
Guanine rich repeats done
clear
C)
Thymine rich repeats done
clear
D)
Cytosine rich repeats done
clear
View Solution play_arrow