A researcher is creating pedigrees for a trait he suspects to be dominant in humans. What are some of the likely features of his pedigrees for families with this trait?
A)Only females will have this dominant trait.
B)All the offspring of a mating where one parent has the trait will themselves be affected.
C)The occurrence of mating between individuals with this trait will be high, because all dominant traits are common within any given population.
D)None of the answer options is correct.

Question

Quizplus · Accepted Answer

Dominant traits do not necessarily mean that only females will have the trait, nor do they guarantee that all offspring from one affected parent will also be affected (as the other parent could contribute a recessive allele), and dominant traits are not inherently common in all populations.

A Researcher Is Creating Pedigrees for a Trait He Suspects