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Biology - General Knowledge Objective Questions

71

The entry of pollen tube into the ovule through micropyle is called : 

A.

Porogamy

B.

Mesogamy

C.

Anisogamy

D.

Chalazogamy

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Correct answer is : A
Explanation

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72

Type of pollination in Commelina is :

A.

Chasmogamy

B.

Geitonogamy

C.

Xenogamy

D.

Cleistogamy

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Correct answer is : D
Explanation

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73

The process of embryo formation without fertilization is known as : 

A.

Apospory

B.

Apogamy

C.

Parthenocarpy

D.

Polyembryony

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Correct answer is : B
Explanation

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74

Which of the process Cholodny-Went theory is concerned with ? 

A.

Photomorphogenesis

B.

Photoperiodism

C.

Phototropism

D.

Photorespiration

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Correct answer is : C
Explanation

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75

The hormone present in the liquid endosperm of coconut is 

A.

Cytokinin

B.

Gibberellin

C.

Ethylene

D.

Auxin

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Correct answer is : A
Explanation

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