Oxford University Press | Online Resource Centre

Question 1

What type of ring structure is present in structures A and B?

a) quinoline

b) purine

c) naphthalene

d) pyrimidine

Question 2

What type of structures are the compounds (i) - (iv)?

a) nucleic acids

b) nucleotides

c) nucleosides

d) deoxyriboses

Question 3

To which of the following does thymine form hydrogen bonds in DNA?

a) adenine

b) thymine

c) cytosine

d) guanine

Question 4

What term is used to describe the process by which DNA is copied to produce two daughter DNA molecules?

a) reproduction

b) replication

c) translation

d) transcription

Question 5

What term is used to describe the process by which a segment of DNA is copied to produce a molecule of messenger RNA?

a) reproduction

b) replication

c) translation

d) transcription

Question 6

What term is used to describe the process by which proteins are synthesised from a genetic code?

a) reproduction

b) replication

c) translation

d) transcription

Question 7

What role does messenger RNA play in the synthesis of proteins?

a) It catalyses the process.

b) It provides the genetic blueprint for the protein.

c) It translates the genetic code to a specific amino acid.

d) It modifies messenger RNA molecules prior to protein synthesis.

Question 8

What role does small nuclear RNA play in the synthesis of proteins?

a) It catalyses the process.

b) It provides the genetic blueprint for the protein.

c) It translates the genetic code to a specific amino acid.

d) It modifies messenger RNA molecules prior to protein synthesis.

Question 9

On which of the following molecules would you find a codon?

a) messenger RNA

b) ribosomal RNA

c) transfer RNA

d) small nuclear RNA

Question 10

On which of the following molecules would you find an anticodon?

a) messenger RNA

b) ribosomal RNA

c) transfer RNA

d) small nuclear RNA

Question 11

What amino acid is coded by the triplet of bases UAU?

a) phenylalanine

b) serine

c) tyrosine

d) cysteine

Question 12

Which of the following mutations is most likely to be disruptive to protein synthesis or function?

a) UAU to UAC

b) UAU to UUU

c) UAU to UAA

d) UAU to CAU

Question 13

To which of the following does guanine form hydrogen bonds in DNA?

a) adenine

b) thymine

c) cytosine

d) guanine

Question 14

What type of enzyme is used in recombinant DNA technology to split a specific sugar phosphate bond in each strand of a DNA double helix?

a) esterase

b) restriction enzyme

c) lipase

d) ligase

Oxford University Press, Online Resource Centre, Chapter 06.

Chapter 06

Instructions

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14