DNA and Mutations

Front

What is a mutation?

Back

A mutation is a change in the order of bases in a DNA molecule.

Front

When does a mutation occur?

Back

A mutation happens when a mistake is made when DNA is being copied.

Front

What is deletion in terms of DNA mutation?

Back

Deletion is when a base is left out.

Front

What is insertion in terms of DNA mutation?

Back

Insertion is when an extra base is added.

Front

What is substitution in terms of DNA mutation?

Back

Substitution is when a base is replaced with another.

Front

What can cause DNA to fail to copy accurately?

Back

Exposure to mutagens such as radiation and chemicals.

Front

What are the potential effects of mutations?

Back

Mutations can be harmful (cancer, deformities), helpful (insecticide resistance), or neutral (change in color).

Front

What is the significance of mutations in evolution?

Back

Mutations can lead to evolution.

Front

What does DNA stand for?

Back

DNA stands for Deoxyribonucleic Acid.

Front

What was discovered about heredity in the 1800s?

Back

It was discovered that genes get passed from parents to children.