What is DNA?

What are the 3 parts of a nuleitode?

Whta are the four nitrogen bases and how do they complement each other?

What are chromosomes?

How many chromosomes, sex chromosomes and autosomes in the human body?

Characteristics of homologous chromosomes.

Where is DNA found?

What are genes?

What is the difference between 1 gene and the next?

What are the proteins used to create the structures and perform the actions needed for cells to survive, grow and function?