Mutations Review

Front

What is a mutation?

Back

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

Front

What are the main types of mutations?

Back

The main types of mutations are substitution, insertion, and deletion.

Front

Define substitution mutation.

Back

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

Front

Define insertion mutation.

Back

An insertion mutation occurs when one or more base pairs are added into the DNA sequence.

Front

Define deletion mutation.

Back

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

Front

What is a point mutation?

Back

A point mutation is a mutation that affects a single nucleotide in the DNA sequence.

Front

What is the effect of a deletion mutation on a DNA sequence?

Back

A deletion mutation can lead to a frameshift, altering the reading frame of the genetic code.

Front

How can mutations be beneficial to organisms?

Back

Mutations can introduce new traits that may provide a survival advantage in changing environments.

Front

What is the significance of the phrase 'mutations are sometimes helpful'?

Back

This means that while many mutations can be harmful or neutral, some can lead to beneficial adaptations.

Front

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

Back

Changing 'THE CAT WAS FUN' to 'THE CAT WIS FUN' is an example of a substitution mutation.