DNA Structure Revision

This homework is to help you to revise the information we learned during last term.

Please answer the following questions and email or hand in hard copy of the answers.

This homework is due on Monday, 16th of May




1) What does DNA stand for?
2) Draw a picture of DNA and label the following parts

• Bases
• Double helix
• Backbone
• Sugar

3) What are the names of the four bases that make up DNA?
4) How do the bases pair together?
5) Name 4 scientists that were involved with the discovery of DNA
6) Who was the NZ scientist who helped discover DNA?
7) What is a chromosome and how many chromosomes do humans have?
8) If you are a female, what sex chromosomes do you have?
9) If you are a male, what sex chromosomes do you have?
10) What is a gene?
11) What is an allele?
12) What is the difference between dominant and recessive alleles?
13) How do we write down which allele is dominant?
14) What is a trait?
15) What is the difference between continuous and discrete traits?