Heavy metals work by
A. inactivating proteins.
B. binding to DNA.
C. mutating DNA.
D. dissolving the cell wall.
E. rupturing the cell membrane.
Answer: A
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Which type of viruses can be directly used for translation?
A) dsRNA B) negative ssRNA C) positive ssRNA D) retroviruses
In animals with sex chromosomes, males inherit their X chromosomes from their ______ and transmit them to their _____
A. mothers / daughters B. mothers / sons C. fathers / daughters D. fathers / sons E. mothers / both sons and daughters
The Gulf Stream takes relatively cold water toward northwestern Europe
Indicate whether the statement is true or false.