Types of Mutations

Front

What type of mutation happens to just one base?

Back

Point mutation

Front

What is it called when a mutation has no effect on the amino acid sequence in the final polypeptide?

Back

Silent mutation

Front

What is a mutation?

Back

Any change in the nucleotide sequence of DNA.

Front

What type of chromosomal mutation loses genes? Options: Duplication, Inversion, Deletion, Translocation

Back

Deletion

Front

What type of chromosomal mutation gains a copy of the same genes it already has? Options: Duplication, Inversion, Deletion, Translocation

Back

Duplication

Front

What type of chromosomal mutation removes genes and then re-attaches the genes backwards? Options: Duplication, Inversion, Deletion, Translocation

Back

Inversion

Front

What type of chromosomal mutation gains extra genes that it did not have before? Options: Duplication, Inversion, Deletion, Translocation

Back

Translocation

Front

What does a nonsense mutation do?

Back

Changes one amino acid to a stop codon.

Front

What does a missense mutation do?

Back

Changes one amino acid to a different amino acid.

Front

What type of gene mutation has occurred here? Normal- AGA-TTC-ATA-GCG Mutant- AGA-TTC-AAT-AGC-G Options: Deletion (causing a frameshift), Insertion (causing a frameshift), Substitution, Nonsense

Back

Insertion (causing a frameshift)