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Genes, culture, and age all affect vision.

A) True
B) False

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At the end of the embryonic period, the embryo has all of the basic organs and body parts (except sex organs) of a human being.

A) True
B) False

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Every ovum a woman creates contains an X chromosome.

A) True
B) False

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Eight-year-old Joe has no difficulty seeing things near him but sometimes struggles to see things in the distance. When Joe has his eyes checked, he is told that he does not yet need corrective lenses for nearsightedness. Instead, drawing on current research, the ophthalmologist suggests that he should first try to _____.


A) do homework in a very brightly lit room
B) watch television on a larger screen
C) play outside more
D) avoid reading small print

E) All of the above
F) B) and C)

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Hunter has inherited genes that put him at risk for developing diabetes. However, he does not develop diabetes because of his healthy diet and exercise. This example demonstrates that human characteristics, including diabetes, are _____.

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Brittany was two weeks past her due date. The doctor decided it was best to _____ labor because the fetus was growing too large.


A) postpone
B) induce
C) skip over
D) decrease

E) C) and D)
F) B) and D)

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Teratogens increase the risk of harm but do not always cause damage.

A) True
B) False

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An individual with an extra chromosome on the 21st pair of chromosomes has _____.


A) Down syndrome
B) nearsightedness
C) fragile X syndrome
D) Tourette syndrome

E) A) and B)
F) A) and C)

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Amy went into labor at home. Joan arrived soon after and began to time her contractions and give gentle massages. She assisted Amy and her partner when it was time to leave for the hospital and accompanied them through the birth process. Joan was Amy's _____.


A) postpartum nurse
B) doctor
C) couvade
D) doula

E) None of the above
F) C) and D)

Correct Answer

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A surgical birth, in which incisions through the mother's abdomen and uterus allow the fetus to be removed quickly, is referred to as a(n) _____.


A) epidural
B) cesarean section
C) induced labor
D) doula

E) None of the above
F) B) and D)

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Embryos exposed to large amounts of alcohol may develop fetal alcohol syndrome.

A) True
B) False

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A small section of a chromosome that is the basic unit for the transmission of heredity is a _____.


A) chromosome
B) gene
C) genotype
D) zygote

E) B) and C)
F) B) and D)

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Describe three of the four surprises revealed upon the completion of the Human Genome Project.

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Following the completion of the Human Ge...

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A _____ uses sound waves to generate an image of a fetus in utero.

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Twins who are the same sex and are similar in appearance and traits are _____.


A) monozygotic twins
B) dizygotic twins
C) monozygotic or dizygotic twins
D) not possible to determine if they are monozygotic or dizygotic twins

E) A) and B)
F) A) and C)

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Cells that are able to produce any other cells are called _____cells.

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A surgical birth, in which incisions through the mother's abdomen and uterus allow the fetus to be removed quickly, is referred to as a _____.

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cesarean s...

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Babies born slightly under 2,500 grams are considered _____.


A) low birthweight
B) very low birthweight
C) extremely low birthweight
D) ultra low birthweight

E) B) and C)
F) C) and D)

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On the 23rd pair of chromosomes, females have _____.


A) two X chromosomes
B) two Y chromosomes
C) an X and a Y chromosome
D) just a Y chromosome

E) A) and D)
F) A) and C)

Correct Answer

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When Alexia was born, she suffered a lack of oxygen for a small amount of time. Alexia experienced _____.


A) cerebral hemorrhaging
B) cerebral palsy
C) couvade
D) anoxia

E) A) and B)
F) A) and C)

Correct Answer

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