The mediator protein complex in eukaryotes
A. is composed of a single protein.
B. facilitates interactions between RNA polymerase II and regulatory transcription factors.
C. controls the rate at which RNA polymerase translates mRNA.
D. completely enfolds RNA polymerase and the general transcription factors.
Answer: B
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a. hyphae b. mycelia c. seeds d. spores
What can explain the phenomenon where the same genotype might give rise to different phenotypes?
A) pleiotropy B) codominance C) incomplete dominance D) complete dominance E) penetrance and expressivity
Scientific data:
a. must be collected in laboratories. b. cannot be collected in a completely unbiased way. c. are used to support or refute a hypothesis. d. are always true. e. All of the above are true.
Electrons are shared equally in a(n) _______ bond.
a) a nonpolar covalent bond b) ionic c) hydrogen d) polar covalent