THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Are a type of point mutation
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Code for the same amino acid as intended by the original sequence
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Always affect protein structure and function
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Are a type of point mutation & Code for the same amino acid as intended by the original sequence
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All of the above
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Detailed explanation-1: -Silent mutations are mutations that arise when a single DNA nucleotide alteration inside a protein-coding region of a gene does not affect the amino acid sequence that makes up the gene’s protein. A mutation occurs when the DNA sequence of an organism changes. What causes DNA mutations?
Detailed explanation-2: -There are two types of point mutations: transition mutations and transversion mutations.
Detailed explanation-3: -Point Mutations A nucleotide change in the DNA that does not result in an amino acid change in the protein is called a “synonomous” or “silent” mutation (see Figure 3.3).
Detailed explanation-4: -Mutations may have a wide range of effects. Some mutations have no effect on gene function; these are known as silent mutations. Point mutations are those mutations that affect a single base pair.