Question

Imagine an error occurring during DNA replication in a cell, so that where there is supposed to be a T in one of the genes, there is instead a G. What effect will this have on the cell?

- All the proteins will contain an incorrect amino acid.
-An amino acid will be missing from each of the proteins.
-One of the proteins might contain an incorrect amino acid.
- An amino acid will be missing from one of the proteins.
- The amino acid sequence of one of the proteins will be completely changed.

Answer 1

A missense mutation can cause dire effects on the cell, affecting protein function and leading to non-functional proteins.

Step-by-step explanation:

A missense mutation can cause a different amino acid to be inserted in the protein, which can have dire effects on the cell. It can result in the protein not being able to function correctly or even lead to the production of non-functional proteins. For example, in sickle-cell disease, a missense mutation replaces glutamic acid with valine, resulting in a non-functional hemoglobin protein.