DNA / RNA structure

Question 1

Nucleotide structure

Answer 1

5 carbon pentose sugar
Phosphate group
Nitrogenous base

Question 2

Two types of nucleic acids present in cells

Answer 2

1) DNA - a more stable double stranded form that stores the genetic blueprint for cells
2) RNA - a more versatile single stranded form that transfers the genetic information for decoding

Question 3

Difference between DNA and RNA

Answer 3

DNA= Pentose sugar is deoxyribose
RNA= Pentose sugar is Ribose
DNA = Thymine
RNA = Uracil
DNA = double stranded
RNA= single stranded

Question 4

Watson and Crick

Answer 4

Correctly proposed the structural organisation of the DNA molecule in 1953. Using trial and error, Watson and Crick were able to assemble a DNA model.