in a certain plant, tough seeds (r) are dominant and smooth seeds (r) are recessive. two plants with…
in a certain plant, tough seeds (r) are dominant and smooth seeds (r) are recessive. two plants with genotypes rr are crossed, and they have offspring with smooth seeds. what is the genotype of their offspring? a. rr b. rr c. rr d. rr
Answer
Explanation:
Step1: Identify dominant and recessive
Tough seeds (R) are dominant, smooth seeds (r) are recessive. Smooth - seeded plants have the recessive phenotype.
Step2: Determine genotype for recessive phenotype
For a recessive phenotype, the genotype must be homozygous recessive. Since smooth - seeded plants have the recessive trait, their genotype is rr.
Answer:
A. rr