in a certain plant, rough seeds (r) are dominant and smooth seeds (r) are recessive. two plants with…
in a certain plant, rough seeds (r) are dominant and smooth seeds (r) are recessive. two plants with genotype rr are crossed, and their offspring has smooth seeds. what is the genotype of their offspring? a. rr b. rr c. rr d. rr
Answer
Explanation:
Step1: Recall dominant - recessive rule
In genetics, a recessive trait is only expressed when the organism has two copies of the recessive allele. Since smooth seeds (r) are recessive and the offspring has smooth seeds, it must have two recessive alleles.
Answer:
A. rr