Question

In pea plants, round (R) is a dominant trait, and wrinkled (r) is a recessive trait. Which combination would result in wrinkled seeds?
Question 3 options:

RR


Rr


rr


ww

Answer 1

The answer is rr because if it were "Rr" it would be round. Dominant always exceeds the recessive. so if both traits were recessive, it would be recessive. so "rr" is your answer

Answer 2

Answer: rr

Explanation:

• For any given gene there exists two or more variant forms known as the alleles.

• The allele can either be dominant or recessive.

• A dominant allele is the one which determines the phenotype in both heterozygous and homozygous condition whereas the recessive phenotype is only shown in case of a homozygous condition.

• Since the trait of wrinkled seeds is determined by a recessive allele, it is necessary for the allele r to be present in homozygous condition

• Therefore the genotype should be rr.