Nucleic Acids 1 Key Words

Question 1

Adenine

Answer 1

Double-ringed nitrogenous base. Purine pairs with thymine with 2 hydrogen bonds.

Question 2

Complementary base pairing

Answer 2

Specific hydrogen bonding between bases. A -T/U & C-G

Question 3

Cytosine

Answer 3

Single-ring nitrogenous base. Pyrimidine pairs with guanine with 3 hydrogen bonds.

Question 4

Deoxyribonucleic acid

Answer 4

Molecule responsible for genetic information storage.

Question 5

Guanine

Answer 5

Double-ringed nitrogenous base. Purine pairs with cytosine with 3 hydrogen bonds.

Question 6

Nucleotides

Answer 6

Nucleic acid monomer. Pentose sugar, phosphate group & nitrogenous base.

Question 7

Phosphodiester bonds

Answer 7

Covalent bonds formed between the hydroxyl group of one nucleotide and the phosphate group of another.

Question 8

Purines

Answer 8

Double-ringed nitrogenous base components of nucleotides

Question 9

Pyrimidines

Answer 9

Single-ringed nitrogenous bases form part of a nucleotide

Question 10

Thymine

Answer 10

Single-ringed nitrogenous base. Pyrimidine which pairs with adenine with 2 hydrogen bonds.