Question

in tomatoes, red fruit (r) is dominant over yellow fruit (r). a plant that is heterozygous for red fruit is crossed with a plant that has yellow fruit. what would be the genotypes of the parents?

• rr x rr
• rr x rr
• rr x rr
• rr x rr

Explanation:

In genetics, heterozygous means having two different alleles. If red fruit (R) is dominant over yellow fruit (r), a heterozygous plant for red fruit has the genotype Rr. A plant with yellow fruit (recessive trait) has the genotype rr.

Answer:

Rr x rr