Question

Define mutation. Describe various types of mutation.

Answer 1

The DNA sequence of a gene can be altered in a number of ways. ... This type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene. Nonsense mutation. A nonsense mutation is also a change in one DNA

Answer 2

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↪Mutàt¡on↩

A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.

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There are three types of DNA Mutations:

⭐base substitutions

⭐deletions

and

⭐insertions.

↪Single base substitutions are called point mutations, recall the point mutation Glu > Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.✔

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