QuestionSBA
QuestionChoice
No, this is not the correct answer. This is used for double strand breaks.
10007988
d
Non-homologous end joining
QuestionChoice
No, this is not the correct answer. This is used for double strand breaks.
10007989
e
Homology-directed repair
QuestionChoice
No, this is not the correct answer. This is used to repair a mismatch detected in newly synthesised DNA.
10007986
b
Mismatch repair
QuestionChoice
Yes, this is the correct answer. This involves the detection of the mutated DNA followed by cleavage of this damage section on either side of a thymine dimer by nuclease enzymes.
10007985
a
Nucleotide excision repair
QuestionChoice
No, this is not the correct answer. This is used to repair the deamination of cytosine to uracil.
10007987
c
Base excision repair
Concept
Chapter
2693
3958
Cancer pathology
Topic
182
Cancer Biology
14144
A 34-year-old woman attends a minor operations unit for the removal of a basal cell carcinoma (BCC).

A very common risk factor for BCC is excessive exposure or ultraviolet (UV) light. This is because UV light can induce frameshift mutations by a forming thymine dimer within DNA. However, there are many DNA repair mechanisms that can act to prevent this mutation from occurring.

Which of the following DNA repair mechanisms is responsible for repairing a thymine dimer?
a