sfda

Question 1

Sickle-cell anemia is caused by

Answer 1

a recessive gene

Question 2

During amniocentesis

Answer 2

fluid is tested from the “sac” containing the fetus.

Question 3

HIV/AIDS is:

Answer 3

transmitted through breast milk or during a vaginal delivery more than during pregnancy

Question 4

Carriers of certain genetic characteristics can pass that characteristic on only if:

Answer 4

the other parent has a recessive gene for the same characteristic

Question 5

Conception has occurred when:

Answer 5

the chromosomes combine to form 23 new pairs with a unique set of genetic instructions

Question 6

Which of the following is true regarding nutrition during pregnancy?

Answer 6

Supplementing the diets of pregnant women with calories and protein has shown to have modest positive effects on motor development of infants

Question 7

The primary purpose of genetic counseling is to

Answer 7

assist would-be parents in making procreation decisions

Question 8

The placenta:

Answer 8

acts as a filter that permits oxygen and nutrients to reach the embryo from the mother.

Question 9

Which of the following most accurately describes what genes do?

Answer 9

regulate the development of traits

Question 10

The presence of three copies of the 21st chromosome results in:

Answer 10

Down syndrome