Mutations

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence.

Front

What is a gene?

Back

A gene is a segment of DNA that encodes for a protein.

Front

What type of mutation occurs when one base is replaced by another?

Back

Substitution.

Front

What is the result of a substitution mutation?

Back

A substitution mutation results in one base being replaced by another, potentially altering the protein produced.

Front

What is an inversion mutation?

Back

An inversion mutation occurs when a segment of DNA is reversed within the chromosome.

Front

What is a deletion mutation?

Back

A deletion mutation involves the loss of a segment of DNA.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when extra base pairs are added into a DNA sequence.

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when bases are inserted or deleted from the DNA sequence, altering the reading frame.

Front

What is the difference between a chromosomal mutation and a gene mutation?

Back

A chromosomal mutation affects the structure or number of chromosomes, while a gene mutation affects the sequence of nucleotides in a gene.

Front

What is translocation in terms of chromosomal mutations?

Back

Translocation is a chromosomal mutation where a segment of one chromosome breaks off and attaches to another chromosome.