If you cross homozygous dominant red flower (RR) with a homozygous recessive white flower (rr), what are the possible genotypes and phenotypes of the offspring?

Question

Biology

Guest

Today, 05:06

If you cross homozygous dominant red flower (RR) with a homozygous recessive white flower (rr), what are the possible genotypes and phenotypes of the offspring?

+3

Answers (1)

Know the Answer?

Noah Crosby · Answer 1

The answer is heterozygotes Rr with red flowers.

Dominant red flower (genotype RR) can give only dominant R allele to the offspring.

Recessive white flower (genotype rr) can give only recessive r allele to the offspring.

The cross will look like:

Parents: RR x rr

Offspring: Rr Rr Rr Rr

Offspring with Rr is heterozygous. In dominant traits, at least one dominant allele is necessary for the expression of the trait. So, heterozygotes express dominant trait: offspring with Rr genotype has red flowers.