Now silent mutation will occur when there is no change in the amino acid formed. UGU codes for cysteine. If it changes to UGC then still it will code for cysteine a silent mutation.
amino acid - cysteine
AMINO ACID- Cysteine
amino acid- tryptophan
AMino acid- stop codon
Thank you, Mark. You're always welcome!
Thank you so much for the answer and for the clarification
Dear Mark, Yes, you are correct. DNA has no uracil. In its place, thymine is present. So in DNA, the codon would be ACT and not ACU.
I thought there is no Uracil in DNA? Your DNA answer in non sense mutation has Uracil on it? Or I'm wrong?