HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which gene point mutation will be most likely to have a REALLY BAD effect on the function of a protein?
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a base substitution
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a base deletion near the start of the coding sequence
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a base deletion near the end of the coding sequence, but not the stop codon
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two of the above
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Explanation:
Detailed explanation-1: -So, the correct option is ‘A single base insertion near the start of the coding sequence’.
Detailed explanation-2: -Answer and Explanation: (e) Insertion of one nucleotide is most likely to drastically affect a protein’s sequence.
Detailed explanation-3: -Answer and Explanation: A frameshift mutation is one that will most likely cause a change in the protein’s structure and function.
Detailed explanation-4: -The type of mutation that is likely to have the greatest effect on a protein is B. Nonsense mutation. This is because a nonsense mutation creates a premature stop codon, leading to an incomplete formation of a protein, severely affecting protein structure and function.
There is 1 question to complete.