A transcriptional regulator that decreases transcription of a gene from a vast distance is known as a(n
A) enhancer.
B) upstream control element.
C) regulator.
D) nonsense mutation.
E) silencer.
E) silencer.
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A mutated form of the CFTR gene is associated with
a. recognition proteins. b. gap junction formation. c. peripheral proteins in plasma membranes. d. sinus problems. e. passive transporters.
The number of offspring that could be born is the
A. sex ratio. B. exponential growth phase. C. population. D. reproductive capacity.
In some cats, black coat color (B) is dominant over brown (b) and a striped fur pattern (S) is dominant over a marbled fur pattern (s). You rescued a black striped cat from an animal shelter but could not determine its exact genotype. To do so, you mated
the cat with a brown marbled cat. The mating produced 3 brown marbled, 2 brown striped, 2 black marbled, and 3 black striped. Immediately, you concluded the genotype of your rescued cat was A) BBSS. B) BBSs. C) BbSS. D) BbSs.
The stage of the first meiotic prophase at which the synaptonemal complex extends along the length of the two synapsed chromosomes is
a. leptotene. b. zygotene. c. pachytene. d. diplotene. e. diakinesis.