Question

select the correct answer from each drop - down menu.
genes are segments of dna that determine the phenotype of an individual. pea colors can be yellow or green. when two plants that produce yellow peas were crossed, the offspring produced green peas. this is because the parents were for pea color.
because there are only two options for pea color, the plants pea color is a case of
(the image shows a drop - down menu with options: heterozygous, homozygous dominant, homozygous recessive, and buttons reset and next)

Explanation:

1. For the first blank: Yellow pea color is dominant over green. When two yellow pea plants produce green offspring (which requires two recessive alleles), each parent must carry one dominant (yellow) and one recessive (green) allele. This genotype is heterozygous.
2. For the second blank: Pea color has only two distinct, non-overlapping phenotypes (yellow or green), which fits the definition of a trait with complete dominance, a type of monogenic trait with two discrete variations (a case of complete dominance, or more simply, a two-allele single-gene trait where one is fully dominant over the other).

Answer:

First drop-down menu: heterozygous
Second drop-down menu: complete dominance (or single-gene trait with two alleles, dominant/recessive inheritance)