The DNA sequence TTG is changed to TCG and produces a new protein. Which type of mutation is this? a) missense b) nonsense c) silent d) frameshift
Question
a) missense
b) nonsense
c) silent
d) frameshift
2 Answer
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1. User Answers lrathburn
The answer is A) Missense. The amino acid is being replaced by another amino acid in the DNA sequence TTG changing to TCG and producing a new protein. -
2. User Answers gradman555p98x9p
The right answer is a) missense.
A missense mutation is a point mutation in which a nucleotide of a codon is changed, inducing the change of the associated amino acid. This can render the translated protein non-functional.
These mutations are responsible for diseases such as epidermolysis bullosa and sickle cell disease (which produces a new hemoglobin called Hemoglobin S).
