Ms Cole’s Exam Q

Question 1

describe how do you make a polymer would be different from a RNA polymer:

Answer 1

• A DNA polymer can contain thymine whereas an RNA polymer would uracil
•  A DNA polymer has a deoxyribose sugar where as an RNA polymer has a ribose sugar

Question 2

describe the structure of a DNA molecule

Answer 2

• Two polynucleotides within a DNA strand are joined by phosphodiester bonds and make up the backbone of the molecule
  -complimentary base pairing occurs between strands occurs causing hydrogen bonding which strengthens the structure
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Question 3

what does the function of DNA in cells?

Answer 3

synthesises proteins



Question 4

what is the role of DNA polymerase?

Answer 4

joins nucleotides together by catalysing the reaction and reforming phosphodiester bonds