in peas, yellow seed color (y) is dominant to green seed color (y). a homozygous green seed pea plant is…

in peas, yellow seed color (y) is dominant to green seed color (y). a homozygous green seed pea plant is crossed with a heterozygous yellow seed pea plant. what is the predicted phenotypic ratio of the offspring based on seed color?\no 50 percent yellow, 50 percent green\no 50 percent yy, 50 percent yy\no 100 percent yellow, 0 percent green\no 100 percent yy, 0 percent yy

in peas, yellow seed color (y) is dominant to green seed color (y). a homozygous green seed pea plant is crossed with a heterozygous yellow seed pea plant. what is the predicted phenotypic ratio of the offspring based on seed color?\no 50 percent yellow, 50 percent green\no 50 percent yy, 50 percent yy\no 100 percent yellow, 0 percent green\no 100 percent yy, 0 percent yy

Answer

Explanation:

Step1: Determine parental genotypes

The homozygous green - seed pea plant has genotype yy. The heterozygous yellow - seed pea plant has genotype Yy.

Step2: Set up Punnett - square cross

The possible gametes from the yy plant are all y. The possible gametes from the Yy plant are Y and y. The Punnett - square cross is as follows:

y
Y Yy
y yy

Step3: Determine phenotypes

Yy has a yellow - seed phenotype (because Y is dominant over y), and yy has a green - seed phenotype. There are 2 Yy and 2 yy in the Punnett - square. So the phenotypic ratio is 50% yellow (Yy) and 50% green (yy).

Answer:

50 percent yellow, 50 percent green