Gray discoloration of the skin is a sign of permanent damage seen following exposure to:
A) lewisite and phosgene oxime.
B) chlorine and sulfur mustard.
C) phosgene, soman, and tabun.
D) V agent and sulfur mustard.
Ans: A) lewisite and phosgene oxime.
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A. true B. false
What is the function of the Okazaki fragments?
a. stabilizing the helix b. DNA proofreading c. elongation of the lagging strand d. sealing the gaps left behind during polymerization
Natural selection can only act on traits that
a) are adaptive b) reduce mortality c) are heritable d) are acquired in an individual's lifetime e) confer a reproductive advantage
A new drug for depression was developed by taking a disaccharide, sucrose, and combining several different hydrophilic functional groups onto the molecule. After hearing about its structure, you are positive that this molecule has zero direct effect on
the brain. Why? What will be an ideal response?