Removing genes from molecules of DNA requires the use of special
A. enzymes from peroxisomes.
B. digestive enzymes.
C. microscopic scalpels.
D. restriction enzymes.
Answer: D
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Movement of IAA in a shoot tip is as follows: ____
a. IAA initially moves downward from the shoot tip via polar transport. b. IAA initially moves laterally from the shaded to illuminated side of the shoot tip. c. IAA initially moves laterally from the illuminated to shaded side of the shoot tip. d. IAA initially moves laterally in the shoot tip via non-polar transport. e. IAA moves from root tips upwards towards leaves.
Closely linked genes nearly always end up
a. crossing over. b. assorting independently. c. in the same gamete. d. segregated during meiosis. e. inverted.
The trophoblast secretes ____, which signals the corpus luteum that pregnancy has begun
a. estrogen b. a gray crescent c. progesterone d. hCG e. an enzyme
Genes located close together on the same chromosomes are referred to as ________ genes and generally ________
A) linked; sort independently during meiosis B) homologous; are inherited together C) linked; do not sort independently during meiosis D) codependent; do not sort independently during meiosis