Biochemistry - Part 6 - Nucleic Acids

What are the building blocks of nucleic acids?

• Amino acids

• Monosaccharides

• Nucleotides

• Fatty acids

Nucleotides are linked together via:

• Peptide bonds

• Glycosidic linkages

• Hydrogen bonds

• Phosphodiester bonds

Which component is absent in a nucleoside?

• Nitrogenous base

• Sugar

• Phosphate group

• Both A and B

The sugar present in RNA is:

• Deoxyribose

• Ribose

• Fructose

• Galactose

The sugar in DNA is:

• Glucose

• Ribose

• Deoxyribose

• Mannose

Which of the following is a purine base?

• Cytosine

• Uracil

• Adenine

• Thymine

In DNA, thymine is replaced by which base in RNA?

• Cytosine

• Uracil

• Guanine

• Adenine

Guanosine monophosphate is composed of:

• Guanine + ribose

• Guanine + phosphate

• Guanine + deoxyribose + phosphate

• Guanine + ribose + phosphate

What direction is nucleotide sequence written in?

• 5' to 3'

• 3' to 5'

• Random

• Depends on the strand

Which nitrogenous base pairs with cytosine in DNA?

• Guanine

• Adenine

• Uracil

• Thymine