Question

Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces colorless aleurone. The plant color (not the kernel color) is controlled by another gene with two alleles, Y and y. The dominant Y allele results in green color, whereas the homozygous presence of the recessive y allele causes the plant to appear yellow. In a testcross between a plant of unknown genotype and phenotype and a plant that is homozygous recessive for both traits, the following progeny were obtained: Colored, green 88 Colored, yellow 12 Colorless, green 8 Colorless, yellow 92 Part A Based on the data, what can you say about the genotype of the unknown plant?

Answer 1

Based on the data, what can you say about the genotype of the unknown plant?

It was heterozygous for both genes an it's colored green .

You could say that the correct arrangement of the alleles on the homologs is coupled because thehe genes are linked (one homolog has both dominant alleles; the other homolog has both recessive alleles).