What do gametes, spores, and the gametophyte generation have in common?
a. They are all diploid.
b. They are all haploid.
c. They are present in vascular plants only.
d. They are all produced by meiosis.
e. They are all triploid.
ANSWER: b
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Coelomates are
A. two embryos that develop in the same coelom. B. animals that have a true coelom. C. animals that have two coeloms. D. animals that have no coelom. E. animals in which the coelom disappears at gastrulation.
Which of the following statements is(are) true
concerning promoters? a. They are short sequences in DNA. b. They are locations in DNA where regulatory proteins gather. c. They control transcription. d. They are associated with specific genes. e. All of these are true
Naturally occurring unsaturated fatty acids typically
A) are highly branched. B) are omega-3 fatty acids. C) contain double bonds primarily in the trans configuration. D) contain double bonds primarily in the cis configuration. E) contain an odd number of carbon atoms.
Which stage of animal virus replication may be blocked by a drug that binds with the viral spike?
A) assembly B) attachment C) replication D) penetration E) uncoating