Question

A person has the genotype of RR and her phenotype is that she is right-handed. What would be the phenotype of an individual with the genotype of Rr?Answers Both ( right& left)Right-handed Left handedNone of these I think it is right-handed

Answer 1

According to the text, the phenotype is given by two alleles: R and r.

R causes the individual to be right-handed, so r causes the individual to be left-handed.

The dominant alleles are symbolized with capital letters while the recessive alleles are symbolized with small letters. This means that when the R allele is present, the phenotype will be right-handed regardless of whether the r allele is present. Therefore, the phenotypes of the different genotypes would be as follows:

RR = right-handed

Rr = right-handed

rr = left-handed