GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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point mutations
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lethal mutations
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silent mutations
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retrogressive mutations.
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Detailed explanation-1: -A point mutation occurs in a genome when a single base pair is added, deleted or changed.
Detailed explanation-2: -Frameshift Mutation A frameshift mutation in a gene refers to the insertion or deletion of nucleotide bases in numbers that are not multiples of three.
Detailed explanation-3: -Insertion An insertion, as related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA.
Detailed explanation-4: -Types of Point Mutations. We are going to focus on the following point mutations: frameshift, silent, nonsense, and missense. Let’s start with a frameshift mutation, where there’s an insertion or deletion of one or more bases.
Detailed explanation-5: -There are different types of genetic mutations that can occur in a cell. Point mutations involve the replacement of one base with another. Frame-shift mutations occur when a base is added or removed from the sequence.