Polydactyly is considered a Mendelian trait as
A)it is caused by linked genes.
B)it is caused by a single gene.
C)it is caused due to environmental factors.
D)it affects the stem cells.

Question

Quizplus · Accepted Answer

Polydactyly is a genetic trait caused by the presence of a dominant allele of a single gene. This means that only one copy of the gene is necessary for the individual to express the trait. The inheritance pattern of polydactyly follows Mendelian genetics principles, specifically autosomal dominance. Therefore, choice B is correct. Choices A, C, and D are incorrect as they are not supported by the scientific evidence about the genetic basis of polydactyly.

Polydactyly Is Considered a Mendelian Trait as