InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Human height is a multigenic character |
|
Answer» Another exception to Mendel’s rules is a polygenic inheritance, which occurs when a trait is controlled by more than one gene. This means that each dominant allele "adds" to the expression of the next dominant allele. Usually, traits are polygenic when there is wide variation in the trait. For example, humans can be of many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin colors across people. Skin color is also a polygenic trait, as are hair and eye color. |
|