Learning Objective

In this lesson we will learn about the structure of DNA – the molecule that carries genetic information in living things.

Learning Outcomes

By the end of this lesson you will be able to:

• Describe the structure of nucleotides – the subunits of DNA molecules.

• Describe the structure of DNA molecules, including:

• The types of bonds that hold DNA molecules together.

• The base-pairing rules in DNA.

• DNA’s double helix structure.

• Explain how DNA molecules carry a ‘genetic code’.

(Image: luchschenF, Adobe Stock)