Mutations

Front

A change in a gene, group of genes or chromosome that results in a change in the proteins

Back

Mutations

Front

One nucleotide base is changed so only one amino acid is affected.

Back

Point Mutation

Front

A point mutation where one nucleotide base replaces an original nucleotide base

Back

Substitution Mutation

Front

A substitution mutation that has no effect on amino acids sequence

Back

Silent Mutation

Front

A nucleotide base is inserted or deleted shifting the entire DNA sequence. Entire protein will be changed.

Back

Frameshift Mutation

Front

A frameshift mutation where a nucleotide base is removed from the DNA sequence.

Back

Deletion Mutation

Front

A frameshift mutation where a nucleotide base is added to the DNA sequence

Back

Insertion Mutation

Front

What mutation has occurred here? T-G-A-C-C-A T-G-A-G-C-A Options: Substitution, Deletion, Insertion, Frameshift

Back

Substitution

Front

Are all mutations bad?

Back

No

Front

Why are insertion and deletion (frameshift) mutations so harmful?

Back

They change all of the codons from the mutation on down the line, which changes the amino acid sequence.