QuestionKart - Questions

cds- Question :

Which one of the following is the correct sequence of events during sexual reproduction in plants?

A :

Seedling, formation of embryo, pollination, fertilization, division of zygote

B :

Formation of embryo, seedling, pollination, fertilization, division of zygote

C :

Pollination, fertilization, division of zygote, formation of embryo, seedling

D :

Seedling, formation of embryo, division of zygote, pollination, fertilization

cds- Question :

A child receives a tall beautiful plant as a birthday gift from his father with a quiz. The father asked her how she would verify whether this tall plant was the progeny of both the tall parents or one tall and one short parent plant. She could verify this through

A :

cross-pollination

B :

self-pollination

C :

tissue culture

D :

negative propagation

cds- Question :

In pea, a pure tall plant (TT) is crossed with a short plant (tt). What will be the ratio of pure tall plants to short plants in the F2,generation ?

A :

1:1

B :

1:3

C :

3:1

D :

2:1

cds- Question :

Which one of the following statements about variations is not true ?

A :

Variation is minimum in asexual reproduction.

B :

All variations in a species have equal chances of survival.

C :

Changes in genetic constitution result in variation.

D :

Variants can be selected by environmental factors.

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