You may need to conduct your own research to answer the following questions.

Extension Question 1

If 20% of the nucleotides in a DNA molecule contained the base A, what percentage of nucleotides would contain the following bases?

• T

• C

• G

Extension Question 2

Name two cellular processes that require the temporary separation of DNA into single strands.

Extension Question 3

Name two cell organelles besides the nucleus that contain DNA.