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mollymoll28
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Except for the sperm and the egg, all cells in the human body have ______ pairs of chromosomes.
c. 23
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Pat’s 23rd chromosome pair contains an X chromosome and a Y chromosome. This indicates that Pat:
b. is male
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Women have a ________ chromosome pairing, and men have a ________ chromosome pairing.
a. XX; XY
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River has a round face, a flattened skull, an extra fold of skin over her eyelids, a protruding tongue, short limbs, and retardation of motor and mental abilities. She is likely to have been born with:
c. Down Syndrome
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This is a prenatal medical procedure where a sample of amniotic fluid is withdrawn by syringe and tested for chromosome or metabolic disorders.
c. amniocentesis
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A group of tissues in which small blood vessels from the mother and offspring intertwine but do not connect is the:
b. placenta
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Many of the most important developments occur within the first ________ weeks after conception, often before the woman knows that she is pregnant.
b. 8
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The earliest point at which a fetus can have a chance to survive outside the womb is at the beginning of:
c. the third trimester
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A teratogen is any agent that can cause:
b. birth defects
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Which of the following disorders is LEAST likely to happen to a mother 16 to 34 years old?
b. Down Syndrome
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Malorie was born in her mother’s 32nd week of
pregnancy. Malorie would be termed a ________ baby.
a. preterm
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Juan-Carlos was born full term but was underweight for his gestational age. He would be considered:
d. small for date
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