Question

In single factor crosses between two true breeding strains of tree frog, a scientist discovers that plain green tree frogs and tree frogs with a red 'racing stripe' always produce offspring that have red racing stripes. Why

A) Stripes are dominant to plain green coloration.B) Stripes must allow the frog to hide more effectively in the leaves.C) Tree frogs with stripes are often eaten by birds.D) Tree frogs with stripes must be more common than plain green ones.

Answer 1

A

Step-by-step explanation:

In genetics, there are two kinds of traits, dominant, and recessive.

A dominant trait, is a trait that will be expressed in the offspring, if one of the parents is a carrier of that trait.

A recessive trait, is a trait that is usually not expressed, unless both parents pass down that recessive trait, and no dominant trait is present.

Hence, in this question, the stripes may help with camouflage, however the reason that all the offspring will express the trait of having a "racing stripe" is because the trait of expressing the stripe is a dominant trait.