Biology Practice Problems Mutation Practice Problems Solution: Describe four types of point mutations:transitions...

Solution: Describe four types of point mutations:transitions, transversions, deletions, and additions.

Problem

Describe four types of point mutations:transitions, transversions, deletions, and additions.

Solution

Point mutation is a type of mutation wherein one single nucleotide base is either added, deleted or changed. The following are the four types of point mutations: 

  • Transition occurs when a nucleotide base is changed with the same type of nucleotide base. For example, transition occurs when a same type of purine is changed into another purine or when pyrimidine is change into another pyrimidine.
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