At one end of a double helix, one strand has a free sugar (3?) group and the other strand has a free__________ group.
Correct Answer:
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Q56: After proofreading repair enzymes check the work
Q57: All of the following occur during DNA
Q58: Mutations are a source of genetic_ by
Q59: DNA polymerase, before any proofreading by repair
Q60: When chromosomes replicate
A) the two DNA strands
Q62: DNA_ breaks the hydrogen bonds between complementary
Q63: The basic subunits of DNA are the_
Q64: The DNA of chromosomes is composed of
Q65: Most mutations are harmful or neutral, although
Q66: DNA ligase is important in the replication
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