"Most people with the dominant mutant polydactyly allele have extra digits, but at least 25% have the normal number of digits. What is the genetic explanation for this observation?"

Many individuals with those of the following disease that mentioned in the scenario have included extra amount, however the specific number of figures seems to be at least 25 percent. Then, the following biological explanation is required for such an observation that seems to be the incomplete penetrance.

Gene interactions take place if the couple or another of the not different genotype allelic or nonallelic genes affects the output of the specific phenotypic characters.

lhmarianateixeira lhmarianateixeira · Answer 2 · 2022-03-03T12:24:19+01:00

In this exercise we have to explain the genetic observation for this case, as follows:

In this case, we will deal with an incomplete penetration that occurs due to the genotypes with error.

How can explain incomplete penetrance?

Penetrance, set, with a genotype may or may not be associated with developing a phenotype with the genotype. For example, among people with the same pathogen for an inherited disorder, some may actually develop the same disorder.

So for this case we have that most people have the dominant gene but we found 25 percent of the population with this incomplete penetrance.

What causes incomplete penetrance?

Incomplete penetrance of a genotype refers to the situation in which, in a group of individuals with the same genotype, some do not express the majority phenotype, or the "they should" phenotype. Channeling of the phenotype is considered to be deficient in individuals with this genotype.

See more about incomplete pentrance at brainly.com/question/1494510