Sexual Reproduction In Flowering Plants — DPP 2

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
Archesporium of ovule is:
  1. A Single celled derived from integuments
  2. B Single celled derived from nucellar hypodermis
  3. C Multicellular derived from nucellar epidermis
  4. D Multicellular derived from nucellar hypodermis
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Correct answer: B

2
Angiosperms have covered seeds due to presence of :-
  1. A Stamen
  2. B Ovary
  3. C Megasporophyll
  4. D Pollen sac
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Correct answer: B

3
Endosperm development precedes embryo development, the endosperm of angiospermic plant is: -
  1. A Triploid
  2. B Diploid
  3. C Haploid
  4. D Tetraploid
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Correct answer: A

4
In Angiosperms pollen tube liberate their male gametes into the :-
  1. A Central cell
  2. B Antipodal cells
  3. C Egg cell
  4. D Synergid
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Correct answer: D

5
Tapetum is :-
  1. A Parietal in origin and is the inner most layer of anther wall
  2. B Modified endothecium of anther wall
  3. C Outer most layer of sporogenous tissue modification
  4. D Parietal in origin and is the inner most layer of ovule wall
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Correct answer: A

6
Statement-I: Endothecium helps in the dehiscence of anther.
Statement-II: Tapetum acts as a nutritive layer.
  1. A Both Statement -I and II are correct.
  2. B Statement -I is correct but statement II is incorrect.
  3. C Statement -I is incorrect and statement-II is correct.
  4. D Both Statement -I and statement -II are incorrect.
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Correct answer: A

7
Which of the following are crucial for the storage of seeds?
  1. A Rehydration
  2. B Dehydration
  3. C Seed dormancy
  4. D Both (2) & (3)
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Correct answer: D

8
The mature embryo sac of a typical angiosperm is ____________ celled and __________ nucleated :-
  1. A 8,7
  2. B 7,8
  3. C 6,8
  4. D 8,6
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Correct answer: B

9
How many cells or nuclei are present in mature male gametophyte of Capsella :-
  1. A One
  2. B Two
  3. C Three
  4. D Many
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Correct answer: C

10
Polyembryony is seen in :
  1. A Citrus
  2. B Mango
  3. C Papaya
  4. D Both (1) and (2)
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Correct answer: D

11
A typical angiosperm embryo sac at maturity is:
  1. A 7 celled - 8 nucleated
  2. B 9 celled - 7 nucleated
  3. C 3 celled - 3 nucleated
  4. D 2 celled - 2 nucleated
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Correct answer: A

12
Read the following four statements (A-D):-
(A) Pericarp is fleshy in mango, orange and guava.
(B) Apple and pear are example of parthenocarpic fruits.
(C) In dicot seed, root cap enclosed in an undifferentiated sheath called coleorhiza.
(D) In dicot seed, the zygote gives rise to the proembryo and subsequently to the globular, heart-shaped and mature embryo.
How many of the above statements are correct?
  1. A One
  2. B Three
  3. C Two
  4. D Four
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Correct answer: B

13
Which of the following statements are correct?
  1. A The body of ovule fuses with funicle in the region called chalaza
  2. B Polar nuclei are situated in the central cell above the egg apparatus
  3. C Cleistogamous flowers are invariably autogamous
  4. D Antipodal cells are present towards the micropylar end
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Correct answer: C

14
Ubisch bodies are produced in :-
  1. A Embryosac
  2. B Endothecium
  3. C Pollen grain
  4. D Tapetum
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Correct answer: D

15
Perispermic and endospermic seeds are found in :-
  1. A Castor
  2. B Maize
  3. C Wheat
  4. D Rice
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Correct answer: A

16
Number of nuclei participating in the process of double fertilization is :-
  1. A 2
  2. B 3
  3. C 5
  4. D 6
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Correct answer: C

17
The outermost layer of endosperm of maize grain is called -
  1. A Scutellum
  2. B Perisperm
  3. C Aleurone layer
  4. D Tunica
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Correct answer: C

18
Given below are two statements : one is labelled as Assertion and the other is labelled as Reason (R).
Assertion : Tapetum is innermost layer of anther which is single layered.
Reason : Tapetum is polyploid and multinucleated.
  1. A Both (A) and (R) are correct but (R) is not the correct explanation of (A)
  2. B (A) is correct but (R) is not correct
  3. C (A)is not correct but (R) is correct.
  4. D Both (A) and (R) are correct but (R) is the correct explanation of (A).
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Correct answer: A

19
Given below is the diagrammatic sketch of T.S. of mature anther. Identify the labelled parts and select the right option-
Sexual Reproduction In Flowering Plants – NEET-1919
  1. A
  2. B
  3. C
  4. D
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Correct answer: D

20
The number of ovules in an ovary may be
  1. A One
  2. B Many
  3. C Two
  4. D One to many
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Correct answer: D

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