Rotifers:

(1) Exhibit adult reproductive structures in juvenile phase

(2) Are plants that can be both monoecious or dioecious

(3) Produce gametes by mitosis

(4) Are animals capable of reproducing by parthenogenesis

Subtopic:  Events during Sexual reproduction |
 79%
From NCERT
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With respect to external fertilization, which of the following is not an advantage of internal fertilization?

1. A decreased risk of disease transmission

2. Minimal waste of gametes

3. Greater chances of individual egg fertilization

4. Relatively longer time of egg protection

Subtopic:  Events during Sexual reproduction |
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Match Column I with column II and select the correct option using the codes given below:

 

Column I

 

Column II

A.

Pistils fused together

1.

Gametogenesis

B.

Formation of gametes

2.

Pistillate

C. 

Hyphae of higher ascomycetes  

3.  

Syncarpous

D.

Unisexual female flower

4.

Dikaryotic

Codes:

 

A    

B     

C     

D

(1)

4

3

2

1

(2)

2

1

4

3

(3)

1

2

4

3

(4)  

3

1

4

2

Subtopic:  Sexual Reproduction |
 72%
From NCERT
NEET - 2016
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Which one of the following statements is not correct?

(1) Offspring produced by the asexual reproduction are called clone

(2) Microscopic, motile asexual reproductive structures are called zoospores

(3) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.

(4) Water hyacinth, growing in the standing water, drains oxygen from water that leads to death of fishes. 

Subtopic:  Asexual Reproduction |
 78%
From NCERT
NEET - 2016
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Which one of the following generates new genetic combinations leading to variation?

(1) Vegetative reproduction

(2) Parthenogenesis

(3) Sexual reproduction

(4) Nucellar polyembryony

Subtopic:  Sexual Reproduction |
 92%
From NCERT
NEET - 2016
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Which one of the following is wrong about Chara?

(1) Upper oogonium, and lower round anthredium

(2) Globule and nucule present on the same plant

(3) Upper anthredium and lower oogonium

(4) Globule is male reproductive structure

Subtopic:  Sexual Reproduction |
 69%
From NCERT
NEET - 2014
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The 'Eyes' of the potato tuber are 

(1) flower buds

(2) shoot buds

(3) axillary buds

(4) root buds

Subtopic:  Asexual Reproduction |
 71%
NEET - 2011
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Product of sexual reproduction generally generates

(1) longer viability of seeds

(2) prolonged dormancy

(3) new genetic combination leading to variation

(4) large biomass

Subtopic:  Sexual Reproduction |
 95%
From NCERT
NEET - 2013
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Monoecious plant of Chara shows occurrence of

(1) antheridiophore and archegoniophore on the same plant

(2) stamen and carpel on the same plant

(3) upper antheirdium and lower oogonium on the same plant

(4) upper oogonium and lower antheridium on the same plant

Subtopic:  Events during Sexual reproduction |
 72%
From NCERT
NEET - 2013
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What would be the number of chorosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?

(1) 63

(2) 84

(3) 21

(4) 42

Subtopic:  Events during Sexual reproduction |
NEET - 2011
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