Sexual Reproduction in Flowering Plants( Flower structure; Development of Male and Female Gametophytes; Pollination-types, Agencies...) NEET Questions

Biology - Reproduction

Sexual Reproduction in Flowering Plants( Flower structure; Development of Male and Female Gametophytes; Pollination-types, Agencies...) MCQ Questions


1.
The ovule is attached to the placenta by a stalk called:
A.
Funicle
B.
Integument
C.
Nucellus
D.
Chalaza
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ANSWER :
A. Funicle
2.
Which one of the following represents the male gametophyte in angiosperms?
A.
Pollen grain
B.
Embryo sac
C.
Anther
D.
Microspore mother cell
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ANSWER :
A. Pollen grain
3.
Pollination by insects is called:
A.
Anemophily
B.
Hydrophily
C.
Entomophily
D.
Ornithophily
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ANSWER :
C. Entomophily
4.
Which of the following is an outbreeding device in flowering plants?
A.
Bisexuality
B.
Self-incompatibility
C.
Geitonogamy
D.
Cleistogamy
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ANSWER :
B. Self-incompatibility
5.

Pollen grains can be stored for years in liquid nitrogen at

NEET - 2017

A.

–196°C

B.

–80°C

C.

–100°C

D.

–10°C

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ANSWER :

A. –196°C

6.
Double fertilization involves:
A.
Fertilization of egg by two male gametes
B.
Fertilization of egg and central cell by two male gametes
C.
Fertilization of egg by one male gamete and degeneration of other
D.
Fertilization of egg and antipodal cells by two male gametes
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ANSWER :
B. Fertilization of egg and central cell by two male gametes