Chemistry for Biologists
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Nucleic acids and inheritance

1. The bonding between complementary base pairs is:
Hydrogen bonding
Van der Waal’s forces
Ester links
Peptide links
2. The following base pairs can produce complementary base pairing:
T - C
A – T
T – U
A - G
3. The type of reaction that forms the sugar-phosphate chains in DNA and RNA is:
substitution
esterification
condensation polymerisation
addition polymerisation
4. The sugar present in the nucleotides of DNA is:
Deoxyribose
Ribose
Glucose
Fructose
5. Which of the following are purine bases?
adenine and thymine
adenine and guanine
adenine and uracil
adenine and cytosine
6. Which of the following are pyrimidine bases?
cytosine and adenine
cytosine and guanine
adenine and thymine
cytosine and thymine
7. The sugars in nucleotides are:
hexoses
heptoses
trioses
pentoses
8. The four bases in RNA are:
adenine, guanine, thymine, uracil
adenine, cytosine, thymine, uracil
adenine, guanine, cytosine, uracil
adenine, guanine, cytosine, thymine
9. Intramolecular bonds in nucleotides are formed by:
polymerisation reactions
esterification reactions
hydrolysis reactions
condensation reactions
10. The three components of nucleotides are:
a sugar, a phosphate group, an amino acid
glucose, a phosphate group, a nitrogen-containing organic base
glucose, a phosphate group, an ester
a sugar, a phosphate group, a nitrogen-containing base

 

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