THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One amino acid will change
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Two amino acids will change
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All of the amino acids will change.
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The amino acids will remain the same.
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Detailed explanation-1: -A strand of DNA with the sequence AAC AAG CCC undergoes a mutation, and the first A is changed to a C. How will this mutation affect the amino acid sequence? A. B. One amino acids will change.
Detailed explanation-2: -Missense Mutation A missense mutation is a DNA change that results in different amino acids being encoded at a particular position in the resulting protein. Some missense mutations alter the function of the resulting protein.
Detailed explanation-3: -What may happen when a mutation changes the amino acid sequence of a protein? Messenger RNA may no longer be transcribed because codons change: The protein may become less effective, more effective, or altogether nonfunctional Messenger RNA may identify altered proteins and remove them from the cell.
Detailed explanation-4: -Mutations in a gene can result in a change in the sequence of amino acids such as in frameshift mutations and in missense and nonsense mutations occurring in point mutations. However, point mutations can also lead to silent mutations.
Detailed explanation-5: -While mutations always change the DNA sequence, they do not always cause a change in the resulting protein or an obvious effect on the organism. This can occur because most amino acids can be coded by two or more different codons.