NEET Biology Sexual Reproduction in Flowering Plant / फूलों के पौधों में यौन प्रजनन Question Bank

done Microsporogenesis Total Questions - 55

• question_answer1)
  Intine of pollen grains is composed of
  A)
  Lipid and protein done clear
  B)
  Cellulose and pectin done clear
  C)
  Lignin and cutin done clear
  D)
  Pectin and lignin done clear
  View Solution play_arrow

• question_answer2)
  Another is generally composed of
  A)
  One sporangium done clear
  B)
  Two sporangium done clear
  C)
  Three sporangium done clear
  D)
  Four sporangium done clear
  View Solution play_arrow

• question_answer3)
  A microspore mother cell forms
  A)
  An ovule done clear
  B)
  An embryo sac done clear
  C)
  A pollen sac done clear
  D)
  Pollen grains done clear
  View Solution play_arrow

• question_answer4)
  At the time of pollination, how many cells are formed in the pollen grains
  A)
  One done clear
  B)
  Two done clear
  C)
  Three done clear
  D)
  Four done clear
  View Solution play_arrow

• question_answer5)
  Generally in the wall of the anther lobes how many middle layers are formed
  A)
  Seven done clear
  B)
  Three done clear
  C)
  Six done clear
  D)
  Nine done clear
  View Solution play_arrow

• question_answer6)
  Branched type of pollen tube is formed in
  A)
  Cucurbita done clear
  B)
  Salvia done clear
  C)
  China rose done clear
  D)
  Solanum done clear
  View Solution play_arrow

• question_answer7)
  Endothecium layer of anther lobes is present
  A)
  Outside the epidermis done clear
  B)
  Just inside the epidermis done clear
  C)
  In the innermost layer done clear
  D)
  In the middle region done clear
  View Solution play_arrow

• question_answer8)
  If the leaf cell has 8 chromosomes, it is most likely that
  A)
  Zygote will have 4 chromosomes done clear
  B)
  Gametes will have 8 chromosomes done clear
  C)
  Gametes will have 4 chromosomes done clear
  D)
  Zygote will have 16 chromosomes done clear
  View Solution play_arrow

• question_answer9)
  During meiosis in pollen mother cell the daughter cells are interconnected by passages. The whole structure is called
  A)
  Symplast done clear
  B)
  Plasmodesmata done clear
  C)
  Syncytium done clear
  D)
  Coenocyte done clear
  View Solution play_arrow

• question_answer10)
  Before dehiscence of anther
  A)
  Middle layers enlarge done clear
  B)
  Endothecium develops fibrous thickenings done clear
  C)
  Tapetum develops fibrous thickenings done clear
  D)
  Epidermis degenerates done clear
  View Solution play_arrow

• question_answer11)
  Pollinia are sac like structures
  A)
  Which secrete yellow substance called pollen kit done clear
  B)
  Which are found in megasporangia done clear
  C)
  In which anther lobes are present done clear
  D)
  In which pollen grains are present in mass done clear
  View Solution play_arrow

• question_answer12)
  Tectum, baculum, foot layer are the different parts of
  A)
  Microspore wall done clear
  B)
  Microspore mother cell wall done clear
  C)
  Megaspore wall done clear
  D)
  Megaspore mother cell wall done clear
  View Solution play_arrow

• question_answer13)
  A schematic illustration of the pollen grain is called
  A)
  Pollenogram done clear
  B)
  Palenogram done clear
  C)
  Histogram done clear
  D)
  Parallelogram done clear
  View Solution play_arrow

• question_answer14)
  If the developing microspore mother cells draw nourishment by contacting the tapetal cells, the type of tapetum is called
  A)
  Plasmodial tapetum done clear
  B)
  Secretory tapetum done clear
  C)
  Amoeboid tapetum done clear
  D)
  Endothelium done clear
  View Solution play_arrow

• question_answer15)
  The function of endothecium is
  A)
  Nutritional done clear
  B)
  Mechanical support done clear
  C)
  Dehiscence done clear
  D)
  Protection done clear
  View Solution play_arrow

• question_answer16)
  One pollen mother cell may produce four germinating pollen grains, each with two male nuclei and one tube nucleus. How many meiotic divisions are necessary to bring this about
  A)
  Two done clear
  B)
  One done clear
  C)
  Three done clear
  D)
  Four done clear
  View Solution play_arrow

• question_answer17)
  The germpores on the pollen grains are found on the
  A)
  Exine only done clear
  B)
  Intine only done clear
  C)
  Both exine and intine done clear
  D)
  Vegetative cell done clear
  View Solution play_arrow

• question_answer18)
  How many microspore mother cells will give rise to 256 microspores after reduction division
  A)
  512 done clear
  B)
  128 done clear
  C)
  64 done clear
  D)
  96 done clear
  View Solution play_arrow

• question_answer19)
  The type of fossil pollen grains present in the area may be helpful in the exploration of
  A)
  Coal done clear
  B)
  Petroleum done clear
  C)
  Fossil pteriodophytes done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer20)
  The pollen grain is [NCERT 1974, 75, 76; CPMT 1978, 84; CBSE PMT 1993; RPMT 2002]
  A)
  An immature male gametophyte done clear
  B)
  A mature male gametophyte done clear
  C)
  Partially developed male gametophyte done clear
  D)
  Last stage of male gametophyte done clear
  View Solution play_arrow

• question_answer21)
  How many meiotic divisions are necessary to produce 100 pollen grains     [CPMT 1976; BHU 1991; Bihar 1992; AIIMS 1993; RPMT 1995; CBSE PMT 1995; AFMC 1999]
  A)
  100 done clear
  B)
  25 done clear
  C)
  50 done clear
  D)
  20 done clear
  View Solution play_arrow

• question_answer22)
  Which part of the reproductive structure produces both enzymes and hormones [AIIMS 1981, 93]
  A)
  Archegonium done clear
  B)
  Middle layer done clear
  C)
  Tapetum done clear
  D)
  Endothecium done clear
  View Solution play_arrow

• question_answer23)
  In a flowering plant the largest number of haploid cells occur in [CPMT 1982]
  A)
  Ovule done clear
  B)
  Microsporangia done clear
  C)
  Root tip done clear
  D)
  Cambium done clear
  View Solution play_arrow

• question_answer24)
  The tapetal nuclei in anthers of many angiosperm flowers are [CPMT 1985]
  A)
  Mostly aneuploid done clear
  B)
  Mostly polyploid done clear
  C)
  Mostly haploid done clear
  D)
  Not having complete haploid genome done clear
  View Solution play_arrow

• question_answer25)
  Occurrence of more than four spores from a spore mother cell is called  [CPMT 1986]
  A)
  Polyspermy done clear
  B)
  Polyspory done clear
  C)
  Polyembryony done clear
  D)
  Polysiphony done clear
  View Solution play_arrow

• question_answer26)
  The function of innermost layer of pollen sac, tapetum is           [MP PMT 1986; MHCET 2000, 02; BHU 2001; RPMT 2002; MP PMT 2005]
  A)
  Dehiscence done clear
  B)
  Mechanical done clear
  C)
  Protective done clear
  D)
  Nutritive done clear
  View Solution play_arrow

• question_answer27)
  Endothecium and tapetum in anther are derived from [AMU 1987]
  A)
  Primary sporogenous layer done clear
  B)
  Primary parietal layer done clear
  C)
  Both a and b done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer28)
  In a pollen grain, larger nucleus is [AFMC 1987]
  A)
  Generative nucleus done clear
  B)
  Tube nucleus done clear
  C)
  Vegetative nucleus done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer29)
  Development and formation of pollen grains in anther of the stamen is known as [CPMT 1987]
  A)
  Pollination done clear
  B)
  Fertilization done clear
  C)
  Microsporogenesis done clear
  D)
  Megasporogenesis done clear
  View Solution play_arrow

• question_answer30)
  Which of the following is correct statement  [CBSE PMT 1989]
  A)
  Gametes are diploid done clear
  B)
  Spores are invariably haploid done clear
  C)
  Spores and gametes are invariably haploid done clear
  D)
  Gametes are invariably haploid done clear
  View Solution play_arrow

• question_answer31)
  In another culture, the androgenic haploid plants are obtained from  [CBSE PMT 1990]
  A)
  Young pollen grain done clear
  B)
  Connective tissue done clear
  C)
  Anther tapetum done clear
  D)
  Anther wall done clear
  View Solution play_arrow

• question_answer32)
  In monocots, male gametophyte is  [CBSE PMT 1990]
  A)
  Microspore done clear
  B)
  Megaspore done clear
  C)
  Tetrad done clear
  D)
  Nucellus done clear
  View Solution play_arrow

• question_answer33)
  The odd one is  [CBSE PMT 1991]
  A)
  Micropyle done clear
  B)
  Embryo sac done clear
  C)
  Nucellus done clear
  D)
  Pollen grain done clear
  View Solution play_arrow

• question_answer34)
  In plants meiosis occurs in  [BHU 1991]
  A)
  Anther done clear
  B)
  Root tip done clear
  C)
  Cambium done clear
  D)
  Pollen grain done clear
  View Solution play_arrow

• question_answer35)
  Microsporogenesis is a synonym for [AMU 1991]
  A)
  Spermatogenesis done clear
  B)
  Development of pollen done clear
  C)
  Development of male gametophyte done clear
  D)
  Development of female gametophyte done clear
  View Solution play_arrow

• question_answer36)
  In another culture, some diploid plants were reported with haploids. They have evolved from [BHU 1992]
  A)
  Prothallial cell of pollen grain done clear
  B)
  Generative cell of pollen grain done clear
  C)
  Cell of anther wall done clear
  D)
  Exine of pollen grain done clear
  View Solution play_arrow

• question_answer37)
  The anther wall consists of four wall layers where [CBSE PMT 1993; BVP 2003]
  A)
  Endothecium lies inner to middle layers done clear
  B)
  Tapetum lies just inner to endothecium done clear
  C)
  Tapetum lies next to epidermis done clear
  D)
  Middle layers lie between endothecium and tapetum done clear
  View Solution play_arrow

• question_answer38)
  A typical anther wall has [MP PMT 1993]
  A)
  Ekothecium and endothecium done clear
  B)
  Endothecium and tapetum done clear
  C)
  Exothecium, endothecium and tapetum done clear
  D)
  Exothecium and tapetum done clear
  View Solution play_arrow

• question_answer39)
  In flowering plants, a mature 'male gametophyte' is derived from a 'pollen mother cell' by  [BHU 1994]
  A)
  Three mitotic divisions done clear
  B)
  One meiotic and two mitotic divisions done clear
  C)
  Two meiotic divisions done clear
  D)
  A single meiotic division done clear
  View Solution play_arrow

• question_answer40)
  Palynology deals with the study of [CPMT 1995]
  A)
  Pollen grains done clear
  B)
  Chromosomes done clear
  C)
  DNA done clear
  D)
  Genes done clear
  View Solution play_arrow

• question_answer41)
  Mature male gametophyte is made up of [RPMT 1995]
  A)
  One cell done clear
  B)
  Two cells done clear
  C)
  Three cells done clear
  D)
  Four cells done clear
  View Solution play_arrow

• question_answer42)
  Ubisch bodies found in tapetal cell help in formation of [BHU 1995]
  A)
  Pollen kit and pollinia done clear
  B)
  Exine done clear
  C)
  Sporopollenin done clear
  D)
  Intine and pollen kit done clear
  View Solution play_arrow

• question_answer43)
  Germpore is the region where the exine is [MP PMT 1995]
  A)
  Thick done clear
  B)
  Uniform done clear
  C)
  Thick and uniform done clear
  D)
  Absent done clear
  View Solution play_arrow

• question_answer44)
  How many pollen grains are formed from 10 microspore mother cells by meiosis [CBSE PMT 1996]
  A)
  80 done clear
  B)
  40 done clear
  C)
  20 done clear
  D)
  10 done clear
  View Solution play_arrow

• question_answer45)
  In an young anther the four rows of cells which later produce pollen are called [MP PMT 1999]
  A)
  Antheridium done clear
  B)
  Archesporium done clear
  C)
  Tapetum done clear
  D)
  Zoosporangium done clear
  View Solution play_arrow

• question_answer46)
  If a sporangium is derived from a single cell, it is called [BHU 2000]
  A)
  Leptosporangiate done clear
  B)
  Eusporangiate done clear
  C)
  Heterosporangiate done clear
  D)
  Homosporangiate done clear
  View Solution play_arrow

• question_answer47)
  Tapetum is a part of [MP PMT 2000]
  A)
  Male gametophyte done clear
  B)
  Female gametophyte done clear
  C)
  Ovary wall done clear
  D)
  Anther wall done clear
  View Solution play_arrow

• question_answer48)
  Haploids can be obtained form [MHCET 2000]
  A)
  A pollen grains done clear
  B)
  Root apex done clear
  C)
  Shoot apex done clear
  D)
  Embryo done clear
  View Solution play_arrow

• question_answer49)
  Pollinia is found in which of the following plant family [AIIMS 2001]
  A)
  Asteraceae done clear
  B)
  Myrtaceae done clear
  C)
  Malvaceae done clear
  D)
  Asclepiadaceae done clear
  View Solution play_arrow

• question_answer50)
  In angiosperm, all 4 microspores of tetrad are covered by a layer which is formed by [CBSE PMT 2002]
  A)
  Callose done clear
  B)
  Cellulose done clear
  C)
  Sporopollenin done clear
  D)
  Pectocellulose done clear
  View Solution play_arrow

• question_answer51)
  Meiosis can be observed in [BVP 2003]
  A)
  Spore mother cells done clear
  B)
  Microspores done clear
  C)
  Megaspores done clear
  D)
  Tapetal cells done clear
  View Solution play_arrow

• question_answer52)
  Exine of pollen grains is composed of [MHCET 2003; AIIMS 2003; MP PMT 2005]
  A)
  Pectocellulose done clear
  B)
  Lignocellulose done clear
  C)
  Sporopollenine done clear
  D)
  Pollen kit done clear
  View Solution play_arrow

• question_answer53)
  Rarely among angiosperms the pollen grains influenced the endosperm. This is called as [CPMT 2004]
  A)
  Metaxenia done clear
  B)
  Nemec phenomenon done clear
  C)
  Xenia done clear
  D)
  Mesogamy done clear
  View Solution play_arrow

• question_answer54)
  Ubisch bodies are present in [BHU 2005]
  A)
  Pollen tube done clear
  B)
  Pollen grain done clear
  C)
  Microspore done clear
  D)
  Tapetum done clear
  View Solution play_arrow

• question_answer55)
  Pollen grain are formed in [Haryana PMT 2005]
  A)
  Another done clear
  B)
  Stigma done clear
  C)
  Filament done clear
  D)
  Pollen sac done clear
  View Solution play_arrow