Scientists believe that there are three genes that contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
multiple allele in which offspring receive three alleles from each parent
multiple allele in which offspring receive three alleles from only one parent
polygenic in which offspring receive three alleles from each parent
polygenic in which offspring receive three alleles from only one parent
Answers
Answer:
Polygenic in which offspring receive three alleles from each parent.
Explanation:
Polygenic inheritance describes the trait of inheritance that is determined by more than one gene. It contradicts the Mendelian inheritance patterns which suggest that traits are determined by one gene.
The human skin colour is a good example of polygenic or multiple-gene inheritance. The melanin pigment is responsible for the dark coloration of the skin and it must be noted that there are at least three genes which control the human skin colour.
Utilising a hypothetical example where the production of melanin is controlled by a so called contributing alleles (denoted as A, B, C) would result in a dark skin colour and non-contributing alleles produce light skin colour, it is not impossible to see a spectrum of skin colours would result in an offspring.
Answer:
polygenic in which offspring receive three alleles from each parent
Explanation: