Answers to AQA GCSE Chromosome structure (Biology)

Practice Question

1.Where, within a eukaryotic cell is the DNA found?

In the Nucleus

2.Define the term gene

A gene is a short length of DNA that codes for a protein.

3. How many pairs of chromosomes does a human cheek cell have?

23

4. Why are human chromosomes in pairs?

One of each pair comes from the mother, the other comes from the father.