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The Deamination Dilemma

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Questions and Answers

How does deamination occur?

Due to spontaneous hydrolysis (correct)

Due to exposure to UV radiation

Due to replication errors

Due to enzymatic activity

What is deamination?

The addition of a carboxyl group (COOH)

The loss of a carboxyl group (COOH)

The loss of an amino group (NH2) (correct)

The addition of an amino group (NH2)

What happens when a deamination occurs in methyl cytosine?

Guanine is created

Cytosine remains unchanged

Adenine is created

Thymine is created (correct)

What type of mutation is created if the repair system fails to repair the thymine created by deamination?

Transition mutation Signup and view all the answers

What is the difference between the wild strand and the mutant strand after a deamination-induced transition mutation?

Wild strand has C-G, mutant strand has T-A Signup and view all the answers

What is the name for a pyrimidine to pyrimidine change in a transition mutation?