In a pedigree, a person whose symbol is filled in and who is associated with the roman numeral II _____.
A) is affected by the trait and in the second generation
B) is not affected by the trait and in the second generation
C) is affected by the trait and is the second-oldest child in the family
D) is not affected by the trait and is the second-oldest child in the family
E) is affected by the trait and has an identical twin

Question

Quizplus · Accepted Answer

A person whose symbol is filled in and associated with the roman numeral II is in the second generation of the pedigree. If the symbol is filled in, it means that the person is affected by the trait. Therefore, the best choice is A, which states that the person is affected by the trait and in the second generation.

In a Pedigree, a Person Whose Symbol Is Filled in and Who