When two adjacent bases in the same strand of DNA dimerize (form a covalent bond between them), what happens to
the DNA?
a. the original strand of DNA now contains a new DNA sequence
b. the original strand of DNA is kinked, which prevents DNA polymerase from working properly
c. the original strand of DNA is methylated, which causes the bases to mismatch
d. the original strand of DNA is prevented from opening during replication, so this section of DNA will not be
replicated
e. the original strand of DNA is unaffected, so no additional mutations arise
ANSWER: b
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