The DNA sequence TTG is changed to TCG and produces a new protein. Which type of mutation is this?
missense
nonsense
silent
frameshift

missense

Explanation:A missense mutation is a type of mutation in which there is a change in one single nucleotide in a DNA sequence which results in an altered mRNA sequence and consequent incorporation of wrong amino acid into the amino acid sequence of a protein. The single nucleotide change in DNA results in a different codon on the mRNA sequence and this leads to production of a protein that is different from the original protein. This change can affect the function of the protein, in most cases it makes the protein nonfunctional.

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies