Question

You there......................please help me answer this question right now :D 20 Points!!











Write the following DNA sequence GCTAATCGGCTA. Below this sequence, show how the sequence might look after a substitution mutation. Repeat this for a deletion mutation and an insertion mutation.

Answer 1

Substitution Mutation - A mutation that exchanges one base for another. For this example substitute A with G which will result in this sequence:

GCTGGTCGGCTG

Deletion Mutation - A mutation in which a section of the DNA is cut or lost.

GCTAATCGGCTA -> GCTCGGTA; section AAT was deleted

Insertion Mutation - Extra base pairs are inserted into a new place within the DNA

GCTAATGCGCGGCTA - GCG was added after AAT

Hope this helps!