Author Question: A researcher studies the rate of a rare blood disease among monozygotic and dizygotic twins. She ... (Read 103 times)

Themember4 · **on:** Jun 22, 2018

A researcher studies the rate of a rare blood disease among monozygotic and dizygotic twins. She finds a much higher rate of concordance in the monozygotic twins. What might she conclude?

a) Both parents must be carriers of the disease.
b) Genetic factors play a strong role in this disorder.
c) The disorder is due to a chromosomal abnormality.
d) There are few, if any, environmental influences on this disorder.

Question 2

Seth has Tay-Sachs disease. He wants to marry but is fearful of his children contracting the disease. Seth has volunteered for a research study. What field would be used?

a) behavior genetics
b) pedigree studies
c) population genetics
d) medical studies