<prompt> Which of the following is not a point mutation-Silent mutationNonsense mutationFrame shift mutationMis-sense mutation  <response>: Ans. is c i.e., Frame shift mutation o Somatic mutations include :-i Point mutations :- Silent mutation, mis-sense mutation, nonsense mutation.ii Frame shift mutations :- These are due to deletion or insertion of base pair.iii Trinucleotide repeat mutation.o Methionine is activated into S-adenosylmethionine, which then transfers its methyl group to an acceptor. Thus methionine acts as methyl donor in transmethylation reactions.o Some of the important transmethylation reactions are-i Norepinephrine - Epinephrineii Phosphatidylethanolamine - Phosphatidylcholineiii Gunaidoacetate - Creatineiv Ethanolamine - Cholinev Acetyl serotonin - Serotoninvi Nucleotides - methylated nucleotides 