Author Question: Polygenic traits a. are discrete b. have a continuous range of expression c. are controlled by ... (Read 43 times)

mia · **on:** Jul 10, 2018

Polygenic traits

a. are discrete
b. have a continuous range of expression
c. are controlled by only one genetic locus
d. include the ABO blood type system and cystic fibrosis
e. are also called Mendelian traits

Question 2

Which statement concerning polygenic traits is not true?

a. They are governed by more than one genetic locus.
b. Their expression is often influenced by genetic/environmental interactions.
c. The alleles have an additive effect on the phenotype.
d. They are continuous traits
e. The most frequently discussed are skin, hair and eye color.