Researchers have used molecular analysis to determine that ____ evolved after flowering plants, but before eudicots
and monocots emerged.
a. auxins
b. cytokinins
c. jasmonates
d. gibbererlins
e. ethylene
ANSWER: e
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By itself, independent assortment of chromosomes increases the likelihood that individual daughter cells have ____
a. some paternal chromosomes and some maternal chromosomes b. only paternal chromosomes c. only maternal chromosomes d. chromosomes containing genes from both paternal and maternal chromosomes e. different numbers of chromosomes
Amniocentesis cannot be used to detect fetal
A) gender. B) intelligence. C) chromosomal abnormalities. D) biochemicals that indicate an inborn error of metabolism.
The infectious stage of a beef tapeworm for humans is the
A) gravid proglottids in feces. B) eggs in contaminated water. C) larvae in feces. D) cysticerci in beef. E) mature worms.
A friend tells you that his Aunt Jane is being treated for a brain disorder that is causing her to produce too much of the glucocorticoid hormones. Your friend looked up the hormone and (correctly) found it to be produced by the adrenal glands. He says
he doesn't understand why a brain disorder should have anything to do with the adrenal glands. What do you tell your friend to help him understand the connection between the two? What will be an ideal response?