4B Nucleotides and DNA check

How would you describe the shape of a DNA molecule? (2 words)

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Name this structure

In which of a eukaryotic cell's organelles is the most DNA usually found?

The bases of the DNA 'alphabet' are represented as:

• A, C, G and T

• A, O, G, and T

• C, G, U and T

• C, G, T and D

In the DNA alphabet, T always pairs with:

• A

• T

• G

• C

In a molecule of DNA , C always pairs with ___ (letter only!)

What is the composition of the backbone of DNA?

• Alternating sugar and phosphate molecules

• Complementary base pairs

• Alternating sugar and base molecules

• A polysaccharide

The diagram below represents a DNA nucleotide.

What could the part labelled X represent?

• Adenosine

• Deoxryribose

• Phosphate

• Guanine

In the structure of DNA which one of the following binds with cytosine?

• Deoxyribose

• Thymine

• Ribose

• Adenine