Sexual Reproduction In Flowering Plants — DPP 1

20 NEET questions from Sexual Reproduction In Flowering Plants, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

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1
The function of innermost layer of anther is:
  1. A Dehiscence
  2. B Mechanical
  3. C Protective
  4. D Nutritive
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Correct answer: D

2
Progeny resulting in cross pollination :-
  1. A Are always sterile
  2. B Always show recessive character
  3. C Show greater genetic variability
  4. D Are homozygous
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Correct answer: C

3
Which pollen grain lose their viability within 30 minutes of their release.
  1. A Rose
  2. B Wheat
  3. C Pea
  4. D Potato
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Correct answer: B

4
Fruit production without fertilisation is called?
  1. A Parthenogenesis
  2. B Parthenocarpy
  3. C Polyembryony
  4. D Amphimixis
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Correct answer: B

5
In a flowering plant, how many division/s is/ are required for the formation of mature male gametophyte from mature pollen grain (having two cells) -
  1. A 1 meiotic division is required
  2. B 1 meiotic and 1 mitotic divisions are required
  3. C 1 mitotic division is required
  4. D 1 meiotic and 2 mitotic divisions are required
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Correct answer: C

6
Polyembryony was first observed in ?
  1. A Mangifera
  2. B Cucurbita
  3. C Citrus (Orange)
  4. D Euphorbia
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Correct answer: C

7
What would be the ploidy of cells of tetrad ?
  1. A n
  2. B 2n
  3. C 3n
  4. D 4n
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Correct answer: A

8
Which plant is monoecious?
  1. A Marchantia
  2. B Papaya
  3. C Chara
  4. D Both (1) and (2)
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Correct answer: C

9
Characteristic feature of angiosperm is :-
  1. A Syngamy
  2. B Triple fusion
  3. C Double fertilization
  4. D Seed formation
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Correct answer: C

10
The zygote gives rise to the ______ and subsequently to the globular, heart shaped and mature embryo.
  1. A Torpedo embryo
  2. B Endosperm
  3. C Proembryo
  4. D All of the above BSR370
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Correct answer: C

11
The double fertilization is the only characteristic of :-
  1. A Bryophytes
  2. B Pteridophytes
  3. C Gymnosperm
  4. D Angiosperm
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Correct answer: D

12
Non endospermic seeds are present in :-
  1. A Castor
  2. B Pea
  3. C Maize
  4. D Wheat
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Correct answer: B

13
If pollen release and stigma receptivity within a flower is non synchronised then it is known as :-
  1. A Dichogamy
  2. B Homogamy
  3. C Heterostyly
  4. D Cleistogamy
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Correct answer: A

14
Choose the correct set of statements from the option given below:
(A) Hilum represents the junction between ovule and funicle.
(B) Chalaza, represents the tip of the of the ovule.
(C) Cells of the nucellus have abundant reserve food materials.
(D) Micropyle is surrounded by integuments.
  1. A A, B and C
  2. B B and C
  3. C A and C
  4. D All of the above
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Correct answer: C

15
The pollen tube was first discovered by :-
  1. A P. Maheshwari
  2. B Strasburger
  3. C Nawaschin
  4. D Amici
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Correct answer: D

16
Which of the following statement is correct?
  1. A Papaver is syncarpous
  2. B Papaver is apocarpous
  3. C Michelia is syncarpous
  4. D Both (2) and (3)
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Correct answer: A

17
How many microspores are formed from 10 microspore mother cells ?
  1. A 10
  2. B 20
  3. C 40
  4. D 80
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Correct answer: C

18
Which structure of ovule, takes part in storage of food ?
  1. A Integuments
  2. B Nucellus
  3. C Embryosac
  4. D Micropyle
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Correct answer: B

19
In which set of plants an ovary contains one ovule.
  1. A Papaya, water melon, orchids
  2. B Wheat, paddy, mango
  3. C Papaya, water melon, mango
  4. D Papaya, water melon, wheat
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Correct answer: B

20
Anther of angiosperm generally composed of
  1. A One sporangium
  2. B Two sporangia
  3. C Three sporangia
  4. D Four sporangia BSR316
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Correct answer: D

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