Which of the following is not a reason for the importance of mRNA processing in eukaryotes?

A) longevity in the cytoplasm
B) coupling of transcription and translation
C) presence of a nuclear membrane
D) turnover in the cytoplasm
E) removal of introns


Answer: B

Biology & Microbiology

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Place the portions of the large intestine in the correct order from entry to exit.

(1) ascending colon (2) cecum (3) rectum (4) descending colon (5) transverse colon (6) sigmoid colon (7) anus A. 1,4,5,6,2,3,7 B. 2,1,5,4,6,3,7 C. 1,5,4,6,2,7,3 D. 2,6,5,4,1,7,3 E. 1,5,4,6,2,3,7

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In mammals, gas exchange between the air and blood takes place across the walls of the

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Biology & Microbiology

Which one of the following is found directly beneath the cells of an epithelial tissue?

A) fibrous connective tissue B) basement membrane C) collagen and elastic fibers D) bi or multipolar extensions E) muscle tissue

Biology & Microbiology