GENE MUTATIONS

branch GENETICS

Coming from MUTATIONS
Leading to BASE SUBSTITUTIONS BASE DELETIONS & INSERTIONS
=Gene Mutations:= [image:http://i.imgur.com/W2NGoEp.png?1] Gene mutations (also called point mutations) alter the sequence of bases in a single gene. If a nucleotide is swapped with another nucleotide carrying a different base, this is known as a '''base substitution'''. If a nucleotide is removed, this is known as a '''base deletion'''. The addition of an extra nucleotide into a sequence is known as a '''base insertion'''. Gene Mutations may produce a new version of a gene (allele).