Which of the Following Events Occurs During DNA Replication

question 10

Multiple Choice

Which of the following events occurs during DNA replication?

• A)All methylation of the DNA is lost at the first round of replication.
• B)DNA polymerase is blocked by methyl groups,and methylated regions of the genome are therefore left uncopied.
• C)Methylation of the DNA is maintained because methylation enzymes act at DNA sites where one strand is already methylated and thus correctly methylate daughter strands after replication.
• D)Methylation of the DNA is maintained because DNA polymerase directly incorporates methylated nucleotides into the new strand opposite any methylated nucleotides in the template.

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