Question

In a plant, having red flowers has the allele R, and having white flowers has the allele r. A plant with white flowers is crossed with another plant with an unknown genotype. One hundred percent of the offspring have the genotype Rr. What is the genotype of the unknown parent

Answer 1

Step-by-step explanation:

dominant - red - RR

recessive - white - rr

rr is crossed with an unknown genotype to form Rr,

hence, it can only be RR

rr x RR

r R

Rr