Wednesday, 18 May 2016

What is frame shift mutation ?

 Frame shift mutation -
Types of mutations
Mutation
Point
mutation
Transition Transversions
Frame shift
Mutation
Insertions Deletions
Image source-http://www.slideshare.net/rajdangol303/mutation-35776184
  •  Mutation is a sudden change in nucleotide sequence.  
  •  It is the addition or deletion of base pair that occurs within the protein coding portion of a gene which  have the effect of shifting the translational reading frame.
  • In frame shift  mutation each codon acts as an open reading frame.
  • It  disrupts the translation changing the reading frame due to addition or deletion and Proteins are built incorrectly.

Frameshift Mutations             mRNA Normal                A U G    A A G U U U GGC GC A U UG C A A             Protein  ...

Image source -http://www.slideshare.net/openmichigan/081308d-ginsburgdnaseq-variation

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