Question

in a cross between two pea plants, the trait for yellow seed color appears when the expressed gene has one or both alleles for yellow color. green color appears only when both alleles code for green color. what conclusion can be drawn from the statement? yellow color is a recessive trait while green color is a dominant trait. yellow color is a dominant trait while green color is a recessive trait. yellow color is a normal trait while green color is a mutated trait. both yellow color and green color are acquired traits.

Explanation:

A dominant trait is expressed when at least one allele is present, while a recessive trait is only expressed when both alleles are of that type. Since yellow seed - color appears with one or two yellow alleles and green only with two green alleles, yellow is dominant and green is recessive.

Answer:

B. Yellow color is a dominant trait while green color is a recessive trait.