GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Substitution
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Deletion
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Insertion
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Frameshift
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Detailed explanation-1: -The correct answer is: Substitution.
Detailed explanation-2: -Base substitution Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.
Detailed explanation-3: -Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. For example, sickle cell anemia is caused by a substitution in the beta-hemoglobin gene, which alters a single amino acid in the protein produced.
Detailed explanation-4: -Mutations can be of many types, such as substitution, deletion, insertion, and translocation.