All viruses are helical.

Indicate whether the statement is true or false.


Answer: False.

Biology & Microbiology

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Efficiently translated mRNAs tend to be stable in the cytoplasm; those that are poorly translated tend tobe rapidly degraded. Which of the following is not a step in the pathway for mRNA degradation?

A. targeting of upstream ORFs for nuclease binding B. removal of the poly(A) tail C. removal of the 5' 7-meG cap D. binding of mRNA by 5'-3' and 3'-5' RNA exonucleases

Biology & Microbiology

In plants, but not animals, each daughter cell differentiates and becomes specialized for its particular function

a. True b. False

Biology & Microbiology

The primary function of muscle tissue is

A. contraction. B. absorption. C. secretion. D. impulse transmission. E. compression.

Biology & Microbiology

Which of the following statements regarding ELISAs is TRUE?

A. They are not quantitative. B. They require large amounts of serum. C. The antibody label is a fluorescent molecule. D. They can be used to detect antibody or antigen. E. They involve the use of membrane filters.

Biology & Microbiology