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how do mutations shorten a protein such as BRCA 1 gene?

mooma

wrote...

Posts: 1

Rep:

10 years ago

how do mutations shorten a protein such as BRCA 1 gene?

how do mutations shorten a protein such as BRCA 1 gene?

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padre

wrote...

#1

Staff Member

Educator

10 years ago

Nonsense mutation

In this example, the nucleotide cytosine is replaced by thymine in the DNA code, signaling the cell to shorten the protein.

A nonsense mutation is also a change in one DNA base pair. Instead of substituting one amino acid for another, however, the altered DNA sequence prematurely signals the cell to stop building a protein. This type of mutation results in a shortened protein that may function improperly or not at all.

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