Next Generation: HS.LS3.2 HS.LS3.2


Author: Nathan Lampson
This lesson will describe what a mutation is and how it can effect the outcome of protein synthesis.
See More
Introduction to Psychology

Analyze this:
Our Intro to Psych Course is only $329.

Sophia college courses cost up to 80% less than traditional courses*. Start a free trial now.



DNA is a long double-strand of molecules, called nucleotides, that code for specific proteins in a cell.  The code of DNA can be disturbed by environmental factors.  A gene mutation is a sequence of DNA that has been damaged.
A deletion occurs when one or more nucleotides is removed from a string of DNA.
An insertion occurs when extra nucleotides are added to a string of DNA.
Because the exact sequence of nucleotides in a strand of DNA are required to code for specific proteins, a deletion disrupts the ability for proteins to be synthesized.  Mutated DNA is unable to code for the correct proteins.