MCQ on Molecular Mechanism of Mutation with Answers (PDF)







Molecular Mechanism of Mutation refers to the biochemical processes that lead to alterations in the DNA sequence. These mutations can arise from errors during DNA replication, exposure to mutagenic agents, or spontaneous chemical changes. Understanding the molecular basis of mutations helps to elucidate how genetic variation is introduced and how it can affect gene function and cellular processes. This is an MCQ on Molecular Mechanism of Mutation with Answers. You can download the quiz as PDF from the results page.

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1. 
Which of the following is a common cause of spontaneous mutations?

2. 
What type of mutation is caused by the deamination of cytosine to uracil in DNA?

3. 
Which enzyme is responsible for correcting base mismatches during DNA replication? RNA polymerase

4. 
Alkylating agents typically induce which type of DNA mutation?

5. 
What type of mutation is caused by the insertion or deletion of nucleotides that are not in multiples of three?

6. 
Which of the following is a mechanism by which UV light induces mutations?

7. 
Which repair mechanism is primarily responsible for fixing thymine dimers caused by UV radiation?

8. 
Oxidative damage to DNA, such as the conversion of guanine to 8-oxoguanine, can lead to which type of mutation?

9. 
What is the molecular basis of a tautomeric shift leading to a mutation?

10. 
A double-strand break in DNA is typically repaired by which mechanism?

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