Question

Two brothers have thick hair that grows over their faces and most of their bodies.

Answer 1

The most likely explanation for the irregular expression of hairlessness on the mother's skin is codominance

Codominance is a biological term to refer to the hereditary pattern that is characterized by:

• In the heterozygous state, there is no recessive allele, but both behave as dominant. Codominance is characterized by the manifestation of both characteristics as dominant, without mixing.

According to the above, the irregular expression of the lack of hair in the mother is a manifestation of the codominance of the hair gene and the hairless gene that do not mix but are seen independently.

Learn more in: brainly.com/question/14053639