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

done Fertilization Total Questions - 40

• question_answer1)
  The techinique of parasexual fusion was first discovered by
  A)
  Harris and Watson done clear
  B)
  Dudits done clear
  C)
  Carlson done clear
  D)
  Harris and Watkins   done clear
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• question_answer2)
  The diagram below shows a fertilized ovule and carpel Which numbers represent the structures which will become? (i) The future embryo (ii) The future testa (iii) The future micropyle of the seeds
  A)
  (i) - 5 (ii) - 3 (iii) - 1 done clear
  B)
  (i) - 7 (ii) - 8 (iii) - 4 done clear
  C)
  (i) - 6 (ii) - 3 (iii) - 7 done clear
  D)
  (i) - 5 (ii) - 2 (iii) - 4 done clear
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• question_answer3)
  Chalazogamy is found in
  A)
  Cucurbita done clear
  B)
  Sunflower done clear
  C)
  Casurina done clear
  D)
  Boerhavia done clear
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• question_answer4)
  When the pollen tube enters through the micropyle, it is  termed as [Manipal MEE 1995; CPMT 1999; MHCET 2001]
  A)
  Chalazogamy done clear
  B)
  Mesogamy done clear
  C)
  Porogamy done clear
  D)
  None of the above done clear
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• question_answer5)
  Female gametophyte of a typical dicot at the time of fertilization is [AFMC 1976; BHU 1980; CBSE PMT 1993; AIIMS 2000]
  A)
  8 celled done clear
  B)
  7 celled done clear
  C)
  6 celled done clear
  D)
  4 celled done clear
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• question_answer6)
  Syngamy means  [CBSE PMT 1991]
  A)
  Fusion of similar spores done clear
  B)
  Fusion of dissimilar spores done clear
  C)
  Fusion of cytoplasm  done clear
  D)
  Fusion of gametes done clear
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• question_answer7)
  Double fertilization was discovered by [CPMT 1990, 93, 96, 99; RPMT 1995; MP PMT 1999; BHU 2003]
  A)
  Karl Schnarf done clear
  B)
  P. Maheshwari done clear
  C)
  S.G. Nawaschin done clear
  D)
  B.G.L. Swamy done clear
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• question_answer8)
  When pollen tube enters by integuments, then the process is called [CPMT 1989, 91; MHCET 2000; MP PMT 2004]
  A)
  Mesogamy done clear
  B)
  Porogamy done clear
  C)
  Chalazogamy done clear
  D)
  Pseudogamy done clear
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• question_answer9)
  Double fertilization is a characteristic of            [AFMC 1984; CPMT 1987, 93, 94; Bihar 1995; BHU 1999, 2000; Kerala CET 2003; MP PMT 2004]
  A)
  Gymnosperms done clear
  B)
  Bryophytes done clear
  C)
  Angiosperms done clear
  D)
  Pteridophytes done clear
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• question_answer10)
  Fertilization of egg takes place inside [DPMT 1993]
  A)
  Anther done clear
  B)
  Stigma done clear
  C)
  Pollen tube done clear
  D)
  Embryo sac done clear
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• question_answer11)
  Pollen tube at the time of entering embryo sac has [BHU 1976]
  A)
  Four gametes done clear
  B)
  Three male gametes done clear
  C)
  Two male gametes done clear
  D)
  One gametic nucleus done clear
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• question_answer12)
  When pollen tube enters through the funiculus or the base of the ovule, it is called as [CPMT 1986]
  A)
  Chalazogamy done clear
  B)
  Mesogamy done clear
  C)
  Isogamy done clear
  D)
  Porogamy done clear
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• question_answer13)
  The nuclei of the sperm and egg fuse as a result of [CBSE PMT 1990]
  A)
  Base pair relation of DNA and RNA done clear
  B)
  Formation of hydrogen bonds done clear
  C)
  Mutual attraction caused by differences in electrical charges done clear
  D)
  Attraction of protoplasts of egg and sperm done clear
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• question_answer14)
  Number of nuclei taking part in double fertilization is [MP PMT 1984; RPMT 1995; Kerala PMT 2004]
  A)
  2 done clear
  B)
  3 done clear
  C)
  4 done clear
  D)
  5 done clear
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• question_answer15)
  Fusion of two dissimilar gametes is called [DPMT 1986; DPMT 1993; AFMC 1996]
  A)
  Fertilization done clear
  B)
  Pollination done clear
  C)
  Self pollination done clear
  D)
  Self fertilization done clear
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• question_answer16)
  A pollen tube grows down the style because [CPMT 1993; AFMC 2002]
  A)
  It helps in fertilization done clear
  B)
  It takes nutrients from the style done clear
  C)
  Filiform apparatus of synergids attracts the pollen tube done clear
  D)
  Of chemical attraction done clear
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• question_answer17)
  The number of nuclei migrating from each of the micropylar quartet and chalazal quartet to the centre of the normal embryo sac is [AMU 1990]
  A)
  One done clear
  B)
  Two done clear
  C)
  Four done clear
  D)
  Number not fixed done clear
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• question_answer18)
  By double fertilization is formed [MP PMT 1994, 2000]
  A)
  Endosperm done clear
  B)
  Megaspore done clear
  C)
  Seed done clear
  D)
  Fruit done clear
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• question_answer19)
  Which one of the following events in a botanical garden is never directly influenced by light [CPMT 1988, 93]
  A)
  Flowering done clear
  B)
  Photosynthesis done clear
  C)
  Transpiration done clear
  D)
  Fertilization done clear
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• question_answer20)
  How much time is generally required/taken by the pine plant from pollination to fertilization [MP PMT 1995]
  A)
  Four months done clear
  B)
  Thirteen months done clear
  C)
  Two years done clear
  D)
  Four years done clear
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• question_answer21)
  The process of fusion between male nucleus and egg nucleus is called as [MP PMT 1995]
  A)
  Syngamy done clear
  B)
  Triple fusion done clear
  C)
  Double fertilization done clear
  D)
  Conjugation done clear
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• question_answer22)
  Double fertilization was first discovered by Nawaschin (1898) in [MP PMT 1997, 2003]
  A)
  Lilium and Fritillaria done clear
  B)
  Mango and sugarcane done clear
  C)
  Papaya and pea done clear
  D)
  Brassica and Candytuft done clear
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• question_answer23)
  The phenomenon of syngamy (fertilization) in angiosperms was discovered by [RPMT 1997; AFMC 2001]
  A)
  Svedberg done clear
  B)
  Strasburger done clear
  C)
  Nawaschin done clear
  D)
  Coulter and Chamberlin done clear
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• question_answer24)
  Germination of pollen grain on the stigma is [JIPMER 1987; BVP 2003]
  A)
  Autogamy done clear
  B)
  In vivo germination done clear
  C)
  In vitro germination done clear
  D)
  None of these done clear
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• question_answer25)
  In angiosperm, triple fusion is necessary for the formation of [CBSE PMT 1996]
  A)
  Seed coat done clear
  B)
  Fruit wall done clear
  C)
  Embryo done clear
  D)
  Endosperm done clear
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• question_answer26)
  In an angiospermic plant, endosperm is formed due to fertilization of secondary nucleus but it is absent in some of the seeds viz. pea, bean, phaseolus (moong) etc. It is due to lack of [MP PMT 1997]
  A)
  Certain enzymes done clear
  B)
  Dicotyledonous hormone done clear
  C)
  Growth hormone done clear
  D)
  None of the above done clear
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• question_answer27)
  Growth of pollen tube towards embryo sac is [AIIMS 2000; CPMT 2003]
  A)
  Geotropism done clear
  B)
  Thigmotaxis done clear
  C)
  Chemotaxis done clear
  D)
  Phototaxis done clear
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• question_answer28)
  Through which route the pollen tube enters the ovule [MP PMT 2001]
  A)
  Chalaza done clear
  B)
  Micropyle done clear
  C)
  Funiculus done clear
  D)
  All of these done clear
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• question_answer29)
  The cell that divides to form two male nuclei in angiosperms is [MHCET 2001]
  A)
  Vegetative cell done clear
  B)
  Generative cell done clear
  C)
  Tube cell done clear
  D)
  Antheridial cell done clear
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• question_answer30)
  Which of the following is without exception in angiosperms [CBSE PMT 2002]
  A)
  Secondary growth done clear
  B)
  Presence of vessels done clear
  C)
  Double fertilization done clear
  D)
  Autotrophic nutrition done clear
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• question_answer31)
  Pollen tube discharge its gametes in [CPMT 2003; CBSE PMT 2003]
  A)
  Synergids done clear
  B)
  Antipodals done clear
  C)
  Central cell done clear
  D)
  None of these done clear
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• question_answer32)
  The formation of embryo without fusion of gametes is termed, as [MP PMT 2003]
  A)
  Apospory done clear
  B)
  Isogamy done clear
  C)
  Apogamy done clear
  D)
  Syngamy done clear
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• question_answer33)
  Triple fusion in angiosperm is the fusion of second sperm with [Orissa JEE 2004]
  A)
  Antipodal cell and one synergid cell done clear
  B)
  Two antipodal cells done clear
  C)
  Two synergid cells done clear
  D)
  Two polar nuclei done clear
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• question_answer34)
  After fertilization the outer integument forms [MHCET 2004]
  A)
  Testa done clear
  B)
  Tegmen done clear
  C)
  Perisperm done clear
  D)
  Pericarp done clear
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• question_answer35)
  Triple fusion is characteristic of [Kerala PMT 2004]
  A)
  Thallophytes done clear
  B)
  Bryophytes done clear
  C)
  Pteridophytes done clear
  D)
  Gymnosperms done clear
  E)
  Angiosperms done clear
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• question_answer36)
  The pollen tube usually enters the embryo sac [AIIMS 2004; CPMT 2005]
  A)
  Through one of the synergids done clear
  B)
  By directly penetrating the egg done clear
  C)
  Between one synergid and central cell done clear
  D)
  By knocking off the antipodal cells done clear
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• question_answer37)
  Double fertilization involves [AIIMS 2005]
  A)
  Fertilization of the egg by two male gametes done clear
  B)
  Fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube done clear
  C)
  Fertilization of the egg and the central cell by two sperms brought by different pollen tubes done clear
  D)
  Fertilization of the egg and the central cell by two sperms brought by the same pollen tube done clear
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• question_answer38)
  Which of the following is not true for double fertilization [BCECE 2005]
  A)
  Discovered by Nawaschin done clear
  B)
  Male gamete and secondary nucleus fused to form Endosperm nucleus done clear
  C)
  Endosperm nucleus is diploid done clear
  D)
  Endosperm provide nutrition to embryo done clear
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• question_answer39)
  Development of seed from an unfertilised egg is called [HP PMT 2005]
  A)
  Vivipary done clear
  B)
  Parthenocarpy done clear
  C)
  Apogamy done clear
  D)
  Apospory done clear
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• question_answer40)
  Double fertilisation results in the production of [J&K CET 2005]
  A)
  Haploid nucleus done clear
  B)
  Diploid nucleus done clear
  C)
  Triploid nucleus done clear
  D)
  Tetraploid nucleus done clear
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