Question

mutations can cause a change in a gene allele, which can be harmful. ocasionally mutations can be beneficial. some changes however are 'silent', i.e. they dont cause a change in the trait. explain how this is possible.

Answer 1

Answer: They replace the original amino acid with the same or a chemically similar amino acid

Step-by-step explanation:

If for instance: glutamate is replaced by aspartate in a polypeptide chain, then the mutation is called 'silent' because both glutamate and aspartate are acidic amino acids, hence it does not result in a change of the amino acid sequence of the protein.