Questions 31 - 40

Question 0

Independent orientation of chromosomes at metaphase I and random fertilization are most like

Answer 0

shuffling cards and dealing out hands of poker.

**“Independent orientation of chromosomes at metaphase I” shuffles the maternal and paternal chromosomes in that each pole will receive a random assortment of maternal and paternal chromosomes.

“random fertilization” is like drawing a single card at random from a deck of cards (sperm): for humans, only 1 card out of a deck of several hundred million is dealt.

Question 1

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Answer 1

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Question 2

Amniocentesis and chorionic villus sampling allow for __________ and __________ of the fetus so that it?

Answer 2

karyotyping . . . biochemical testing

**Karyotyping is an accurate way of telling if a fetus has certain abnormalities like Down Syndrome. Imaging would probably not be the easiest way of detecting abnormalities. (Then again, I wouldn’t know.)

Question 3

_________ are a major source of restriction enzymes.

Answer 3

Bacteria

Question 4

A monohybrid cross is

Answer 4

A breeding experiment in which parental varieties differ in only one character.

Question 5

Which of the following statements about the problems created by cloning is false?

Answer 5

Cloned animals live longer than naturally created animals.

・Cloning endangered species may de-emphasize the need to preserve critical natural habitats.
・Cloning does not increase genetic diversity in the cloned species.
・Cloned animals are less healthy than animals created by natural methods