Question

this passage describes the pod shape trait in pea plants: pea plants protect their seeds in pouch - like cases called pods. some pea plants grow inflated pods, which are smooth. other pea plants grow constricted pods, which are bumpy. in a group of pea plants, some individuals have inflated pods and others have constricted pods. in this group, the gene for the pod shape trait has two alleles. the allele d is for inflated pods, and the allele d is for constricted pods. a certain pea plant from this group has inflated pods. this plant has two alleles for inflated pods. based on this information, click the blue words to correct any errors in the text. this pea plant is heterozygous for the pod shape gene. this pea plant’s genotype for the pod shape trait is constricted pods. this pea plant’s phenotype for the pod shape gene is dd.

Explanation:

1. A plant with two identical alleles for a trait is homozygous, not heterozygous.
2. Genotype refers to the genetic makeup (alleles). The plant has two alleles for inflated pods, so its genotype is DD, not "constricted pods" (a phenotype).
3. Phenotype refers to the observable physical trait. This plant has inflated pods, not the allele combination Dd (a genotype).

Answer:

1. This pea plant is homozygous for the pod shape gene.
2. This pea plant's genotype for the pod shape trait is DD.
3. This pea plant's phenotype for the pod shape gene is inflated pods.