8. Progeny of pea plant

3 m.

Give a very short answer to the question given below:

a. Why is the F1 progeny always of tall plants when a tall pea plant is crossed with a short pea plant?

b. How is F2 progeny obtained by self-pollination of F1 progeny different from F1 progeny ? Give reason for this observation.

Both F1 and F2 show only short plants
F1 shows both tall and dwarf plants, while F2 shows only tall plants
F1 shows only tall plants, while F2 shows both tall and dwarf plants in a definite ratio
Both F1 and F2 show tall and dwarf plants in proper numbers

c. State a conclusion that can be drawn on the basis of this observation.

The tall trait is recessive and requires two alleles to be expressed
Traits of parents always blend in the offspring
Both F1 and F2 show tall and dwarf plants in proper numbers
The tall trait is dominant, and traits are inherited independently of each other

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