Double Helix DNA

Question 1

Is DNA twisted into a double helix?

Answer 1

• Yes
• the 2 joined polynucleotide strands are then twisted into a double helix and held by hydrogen bonds.

Question 2

How does coiled DNA relate to its function?

Answer 2

• It has a compact shape
• can be stored in a small space - nucleus

Question 3

How does base sequence relate to its function?

Answer 3

It acts as the genetic code

Question 4

How does the double stranded DNA structure relate to its function?

Answer 4

Allows for accurate replication of DNA when needed

Question 5

How does the double helix DNA structure relate to its function?

Answer 5

Makes it a more stable structure and this protects the genetic code from damage