1. Which of the following is not true regarding DNA repair? a.double strain brea
ID: 226077 • Letter: 1
Question
1. Which of the following is not true regarding DNA repair?
a.double strain breaks in DNA can be repaired by recombination
b.methyl-directed mismatch repair uses fully-methylated sequences to identify which strand to use for repair
c.genetic disease can be caused by the loss of a single repair mechanism
d.actively transcribe genes are more efficiently repaired than non-transcribe DNA
2. Which of the following is not true regarding DNA repair?
a.double strain breaks in DNA can be repaired by recombination
b.methyl-directed mismatch repair uses fully-methylated sequences to identify which strand to use for repair
c.genetic disease can be caused by the loss of a single repair mechanism
d.actively transcribe genes are more efficiently repaired than non-transcribe DNA
Explanation / Answer
True, after breaking of strands, they can further join by creating hydrogen bonds. True, proper methylation creates information for repairing in correct position. True, if DNA does not repair correctly, it has great chance of creating mutations. True, excision-repair complex can rapidly and even directly form in actively transcribed genes.
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