Question

The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Green pods are the dominant trait. The flowchart is missing the labels that describe the traits.

A flow chart is shown. A and B both go to C. C goes to both D and E.

In which squares should the phrase “Green pods” appear?
A and D only
B and E only
A, C, and D only
A, B, C, D, and E

Answer 1

A, B, C, D, and E

Step-by-step explanation:

The answer above is correct.

Answer 2

green pods are the dominant trait and are present in both the parental pea plants. So, both A and B should have "Green pods" written in them.

In the next generation, all the offspring will inherit at least one dominant allele for green pods from their parents. So, in square C, "Green pods" should also be written.

From square C, the offspring will be divided into two groups based on their genotype. Those with two dominant alleles (GG) will have green pods and those with one dominant and one recessive allele (Gg) will also have green pods because green is dominant over yellow. So, in square D, "Green pods" should be written.

Similarly, in square E, the offspring with two recessive alleles (gg) will have yellow pods, but since green is dominant over yellow, the offspring with one dominant and one recessive allele (Gg) will still have green pods. Hence, "Green pods" should also be written in square E.