Question

In wheat, kernel color is determined by additive alleles at two unlinked loci. If two plants, one with dark red kernels (+++– genotype), and one with light red kernels (+– – – genotype), are crossed, what fraction of the offspring is expected to have phenotypes distinct from parental colors?

Answer 1

50 %

Step-by-step explanation:

Alleles in dark red kernels: ++ and +-

Alleles in light red kernels: +- and --

genetic cross will result in off springs: +++- ; ++--, +-++, +-+-

Hence 50% offspring will have phenotypes different from parental colors