Answer to Question 1
A
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A Approximately 30,000 to 40,000 genes make up the human genome; this is only twice as many as make up the genomes of roundworms and flies.
B Human beings are 99.9 identical at the DNA level.
C Most human genes produce at least three proteins.
D Single gene testing (e.g., alpha-fetoprotein) is already standardized for prenatal care.
Answer to Question 2
3
Rationale:
1. Pelvic measurements are usually done at the initial prenatal appointment.
2. Hepatitis B screening, complete blood count or hemoglobin, and hematocrit plus platelet count are done at the initial prenatal appointment.
3. At each prenatal visit, the blood pressure, pulse, and weight are assessed, and the size of the fundus is measured. Fundal height should be increasing with each prenatal visit.
4. Hepatitis B screening, complete blood count or hemoglobin, and hematocrit plus platelet count are done at the initial prenatal appointment.