In contrast to sarin, soman:
A) is much less persistent and is odorless.
B) is five times as lethal and has a fruity odor.
C) is a clear, oily agent that looks like baby oil.
D) enters the body exclusively through the skin.
Ans: B) is five times as lethal and has a fruity odor.
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The backbone of the DNA molecule is formed by ________
A. peptide bonds B. ribose sugars C. nitrogenous bases D. phosphodiester bonds
Dogs have ________ and snails have _______
a. exoskeletons; hydroskeletons b. exoskeletons; endoskeletons c. hydroskeletons; endoskeltons d. endoskeltons; exoskeletons e. endoskeltons; hydroskeletons
An exergonic reaction results in a net gain of free energy
__________________ Indicate whether the statement is true or false.
Transition mutations can result from ________.
A. a small insertion or deletion B. incorporation of a base analog that exhibits different base-pairing properties from the base it replaces C. incorporation of a base analog that exhibits different base-pairing properties from the base it replaces and chemical modification of an existing base in the DNA so that in the next round of replication it will pair differently from the unmodified base D. chemical modification of an existing base in the DNA so that in the next round of replication it will pair differently from the unmodified base