The dotted areas in the figure above indicate
where ____ reactions will occur to produce
____ and ____.
a. condensation; covalent bonds; hydroxyl
ions
b. electron transfer; covalent bonds; water
molecules
c. condensation; covalent bonds; water
molecules
d. cleavage; covalent bonds; hydrogen ions
e. condensation; ionic bonds; hydrogen ions
C
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Taq polymerase is commonly used in PCR reactions because it ____
a. keeps the primers from annealing to the DNA b. makes fewer DNA replication errors than other DNA polymerases c. is a heat-stable DNA polymerase d. is more efficient at replicating DNA than other DNA polymerases e. helps the primers anneal to the correct DNA sequence
What does the hydrolysis of a purine base from the deoxyribose-phosphate backbone leave behind?
A) an apurinic site B) a modified base C) a double-strand break D) a mutation E) a deletion
The spindle fibers are made up of
A) golgi bodies B) microtubules C) microfilaments D) intermediate filaments
Which of the following processes does not use ATP?
A. active transport B. diffusion of oxygen into the blood C. muscle contraction D. cytoplasmic transport E. heat production