Mutations

Front

What is a frameshift mutation?

Back

A mutation that occurs when nucleotides are inserted or deleted from the DNA sequence, causing a shift in the reading frame of the genetic code.

Front

What is a deletion mutation?

Back

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

Front

Why are insertion and deletion mutations harmful?

Back

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

Front

What is a silent mutation?

Back

A type of mutation that involves substituting a DNA base with a different base but still results in the same protein.

Front

What is a substitution mutation?

Back

A mutation that replaces one nucleotide base with another, which may or may not change the resulting protein.

Front

What is a translocation mutation?

Back

A mutation where a segment of one chromosome is transported and attached to a non-homologous chromosome.

Front

What is an insertion mutation?

Back

A type of mutation where one or more nucleotide bases are added into the DNA sequence.

Front

What is an inversion mutation?

Back

A mutation that occurs when a segment of DNA is reversed within the chromosome.

Front

What is a nonsense mutation?

Back

A mutation that changes a codon to a stop codon, resulting in a truncated protein.

Front

What is a missense mutation?

Back

A mutation that results in the substitution of one amino acid for another in a protein.