Flashcard -DNA Mutations

Front

What is a mutation?

Back

A permanent change in the DNA sequence.

Front

How can mutations affect a species?

Back

They can lead to variation.

Front

What is the effect of a mutation in a gamete cell?

Back

It can be passed to offspring.

Front

Which type of mutation involves the addition of nucleotides?

Back

Insertion mutation.

Front

What protein difference causes some mosquitoes to be resistant to insecticide?

Back

Acetylcholinesterase (AChE).

Front

What is a substitution mutation?

Back

A mutation where one nucleotide is replaced by another.

Front

What is a deletion mutation?

Back

A mutation where one or more nucleotides are removed from the DNA sequence.

Front

What is the role of DNA in mutations?

Back

DNA carries the genetic information that can be altered by mutations.

Front

What is a frameshift mutation?

Back

A mutation that shifts the reading frame of the genetic message.

Front

What are somatic mutations?

Back

Mutations that occur in non-gamete cells and cannot be passed to offspring.