Question

Answer on the basis of paragraph given below:

If we cross- breed tall (dominant) pea plant with pure- breed

dwarf (recessive) pea plant, we will get plants of F1 generation. If

we now self-cross the pea plant of F1 generation, we obtain pea

plants of F2 generation.

(i) What do two plants of F1 generation look like?

(ii) State the ratio of tall plants to dwarf plants in F2 generation.

(iii) State the type of plants not found in F1 generation but

appeared in F2 generation.​

Answer 1

Explanation:

1.Plants of F generation are all Tall.

2.Tall plants: Dwarf plants = 3:1

3.Dwarf plants: It is due to in F1 generation. Tall is a dominant trait but in F2 generation, two copies of ‘tt’ recessive traits appear as dwaft plant.