Question

Suppose that two true breeding pea plants are crossed. one of the pea plants always produces yellow pea pods and the other always produces green pea pods. if green pea pods are dominant over yellow pea pods, what percent of the offspring would you expect to have green pea pods?

Answer 1

Answer:

100%

Explanation:

In this problem, we have one gene (pea color) with two possible alleles (green and yellow).

Green is dominant over yellow, so the possible genotypes and phenotypes are:

• GG or Gg = green pea pods
• gg = yellow pea pods.

If an individual is true breeding it is homozygous for all genes under study.

The cross between true breeding plants is:

GG x gg

The green parent (GG) can only produce G gametes; the yellow parent (gg) can only produce g gametes. 100% of the offspring will have the genotype Gg (green).