Which of the following does not contribute significantly to DNA damage?
A. deamination due to hydrolysis
B. alkylation of bases
C. deamination due to superoxide radicals
D. oxidation by hydroxyl radicals
E. oxidation by hydrogen peroxide (H2O2)
C
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The similarity in the evolutionary origins of mitochondria and chloroplasts has led to the development of the ________, which proposed that they were originally bacteria.
Fill in the blank(s) with the appropriate word(s).
The genetic code is ________.
A. the complementary base-pairing of A going with T and C going with G B. our genome C. our DNA, in other words what makes us who we are D. what allows codons to be translated into amino acids
In the United States, solid municipal waste can no longer be dumped ____
a. in garbage dumps b. in biodegradable bags c. in garbage bags d. in landfills e. in the sea
Neurotransmitters move by active transport across the synaptic cleft
____________________ Indicate whether the statement is true or false.