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Questions and Answers
Which part of the colon is predominantly affected by Hereditary Non-polyposis Colon Cancer Syndrome (HNPCC) (Lynch syndrome)?
Which part of the colon is predominantly affected by Hereditary Non-polyposis Colon Cancer Syndrome (HNPCC) (Lynch syndrome)?
- Cecum (correct)
- Rectum
- Descending colon
- Sigmoid colon
What is the main cause of Hereditary Non-polyposis Colon Cancer Syndrome (HNPCC) (Lynch syndrome)?
What is the main cause of Hereditary Non-polyposis Colon Cancer Syndrome (HNPCC) (Lynch syndrome)?
- Exposure to environmental toxins
- Mutations in mismatch repair genes (correct)
- Defective genes involved in cell division
- Inherited chromosomal abnormalities
What is the role of mismatch repair genes in DNA repair?
What is the role of mismatch repair genes in DNA repair?
- They prevent DNA replication errors
- They correct faulty pairing of nucleotides (correct)
- They repair damaged DNA strands
- They remove mutations from the DNA sequence
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