Question

Which genotype(s) and phenotype for fur length are dominant? Which genotype(s) and phenotype for fur length are recessive? Please explain.

A) Dominant: RR, Rr - Long fur; Recessive: rr - Short fur
B) Dominant: rr - Short fur; Recessive: RR, Rr - Long fur
C) Dominant: RR - Long fur; Recessive: Rr, rr - Short fur
D) Dominant: Rr, rr - Short fur; Recessive: RR - Long fur

Answer 1

The dominant genotypes for fur length are RR and Rr, resulting in long fur. The recessive genotype for fur length is rr, resulting in short fur.

Step-by-step explanation:

The genotype for fur length is determined by the combination of two alleles: R (for long fur) and r (for short fur). In this case, the genotype RR and Rr both result in the dominant phenotype of long fur, while the genotype rr results in the recessive phenotype of short fur. Therefore, genotype RR and Rr are dominant for fur length, while genotype rr is recessive for fur length.