Mutations

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence of an organism.

Front

What are the three main types of mutations?

Back

Insertion, Deletion, and Substitution.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one base in the DNA sequence is replaced by another base.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more bases are added to the DNA sequence.

Front

What is a deletion mutation?

Back

A deletion mutation occurs when one or more bases are removed from the DNA sequence.

Front

How can mutations lead to evolutionary change?

Back

Mutations can introduce new traits that may be beneficial for survival, leading to evolutionary changes over time.

Front

What is the role of the nucleus in relation to DNA?

Back

The nucleus is the organelle where DNA is stored and protected in eukaryotic cells.

Front

Why are insertion and deletion mutations often more harmful than substitution mutations?

Back

They can change all of the codons from the mutation on down the line, altering the entire amino acid sequence.

Front

What is an example of a substitution mutation in a sentence?

Back

Changing 'THEBIGFATREDCATSAT' to 'ZHEBIGFATREDCATSAT' is an example of a substitution mutation.

Front

What is an inversion mutation?

Back

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