In transcription, RNA polymerase binds to a(n) _____________________ sequence near a gene, and then assembles a
strand of RNA.
Fill in the blank(s) with the appropriate word(s).
ANSWER: promoter
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In addition to aerobic respiration, which of the
following metabolic pathways include electron transfer phosphorylation?
a. the light-dependent reactions of photosynthesis b. the light-independent reactions of photosynthesis c. alcoholic fermentation d. lactate fermentation e. more than one of these
Two populations of birds with somewhat different coloration live on opposite sides of a peninsula. The habitat between the populations is not suitable for these birds. When birds from the two populations are brought together, they produce young whose appearance is intermediate between the two parents. These offspring will breed with each other or with birds from either parent population, and all offspring of these pairings appear intermediate to various degrees. What keeps the two populations separate?
A. lack of hybrid viability B. behavioral reproductive isolation C. temporal reproductive isolation D. habitat isolation
Crossing over is facilitated by a ____ orientation between homologous chromosomes.
A. tightly angled B. separated, perpendicular C. tight, perpendicular D. separated, parallel E. tight, parallel
In nonsense-mediated decay, how is a premature termination codon distinguished from the normal termination codon?
What will be an ideal response?