In Wheat, Kernel Color Is Determined by Additive Alleles at Two

question 30

Multiple Choice

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?

• A)1/4
• B)4/16
• C)6/16
• D)1/2
• E)10/16

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Definitions:

Rare Allele

An allele that appears infrequently in a population, sometimes associated with specific genetic traits or conditions.

Gene Flow

Gene flow is the transfer of genetic variation from one population to another, which can influence the genetic structure of the receiving population.

Breeding Individuals

Refers to the selection of specific animals or plants for reproduction, aimed at enhancing desirable traits.

Alleles

Different versions of a gene that exist at the same locus on homologous chromosomes, contributing to genetic variation.