mRNA surveillance mechanisms are necessary ________
A) to measure the concentration of mRNAs in the cytoplasm
B) for polyadenylation at the 3' end of mRNA
C) in determining which alternative splice site should be used
D) to recruit general transcription factors to the promoter
E) to eliminate mRNAs with a premature stop codon
Answer: E
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a. A b. B c. C d. D e. E
In a certain breed of chicken, two genes control color. A dominant allele (I) inhibits expression of any
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Wood is an accumulation of
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