Question

In pea plants yellow seeds are dominant to green seeds. A plant with green seeds cross at the plant that is heterozygous.

What are the alleles?
What are the genotypes of the parents?
What are the F1 genotypes?
F1 phenotypes?

Answer 1

The correct answer is -

1. Y (yellow) and y (green)

2. Yy (yellow dominant) and yy (green)

3. Two heterozygous yellow (Yy) and two green recessives (yy)

4. 50% Yellow and 50% green plant

Step-by-step explanation:

In the given question, it is given that a pea plant has two alleles for the trait yellow seeds and green seeds, the alleles for the traits are green (y) and Y for the dominant trait.

The cross between the green seed (yy) pea plants, is recessive and heterozygous which means a combination of dominant and recessive are as follows:

Y y

y Yy yy

y Yy yy

Here two heterozygous yellow seeds and two recessive green seed plant offspring.