At which stage of pregnancy does maternal alcohol pose the greatest risk to fetal outcome?
A. The first trimester
B. The second trimester
C. The third trimester
D. Timing of alcohol consumption does not affect fetal outcome.
Question 2Which of the following is not part of the T.O.R.C.H. infectious agents?
A. Varicella
B. Herpes
C. Group B streptococcus
D. Toxoplasmosis
Question 3X-linked disorders are passed between generations by carrier _______ and occur most often in __________.
A. mothers; females
B. mothers; males
C. fathers; females
D. fathers; males
Question 4If a childs parents are both heterozygous for a recessive trait the probability that the child will have that trait is______ and the probability of the child being a carrier of the trait is________.
A. 25 percent, 50 percent
B. 25 percent, 75 percent
C. 50 percent, 25 percent
D. 50 percent, 50 percent
Question 5Which of the following configurations would indicate that an individual was homozygous with a recessive gene?
A. AA
B. aa
C. Aa
D. aA
Question 6An individuals genetic make-up is called his __________ and his observable biological and behavioral characteristics are called his______________.
A. dominant type; recessive type
B. Mendelian pattern; personality type
C. genotype; phenotype
D. homozygous traits; heterozygous traits
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