HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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insertion
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substitution
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deletion
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duplication
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Detailed explanation-1: -If a DNA sequence is mutated from TCCGGA to TCGGA, what type of mutation has occurred? Explanation: A deletion mutation occurs when a base pair is removed from the DNA sequence. In this case, a cytosine nucleotide has been deleted.
Detailed explanation-2: -Mutations can be of many types, such as substitution, deletion, insertion, and translocation.
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: -Gene variants (also known as mutations) can have varying effects on health, depending on where they occur and whether they alter the function of essential proteins. Variant types include the following: Substitution. This type of variant replaces one DNA building block (nucleotide) with another.