1. In his monohybrid crosses, Mendel deduced that one trait was recessive because _____.

A. that trait was not present in the F1 and did not reappear in the F2
B. that trait was present only in the F2
C. that trait was not present in the F1 and reappeared in the F2
D. that trait was present in the F1 and in the F2
E. that trait was present only in the parents

2. What does OMIM stand for?

A. Obesity and Multifactorial Impact Mutations
B. Only Mendelian Inherited Mutations
C. Original Mutations in Mitosis
D. OMIM is a common symbol used in human medicine
E. Online Mendelian Inheritance in Man

3. When discussing the complicated issues of human multifactorial traits in class, we introduced the concept of the
“threshold model.” This model helps to understand the frequency of a disorder among relatives compared with
the frequency of the disorder among the general population. What human disorder did we discuss in class that is
clinically handled as a “threshold disorder?”

A. Eye color
B. Diabetes
C. One type of skin cancer
D. None of these disorders were discussed in relationship to multifactorial traits
E. Progeria