Organic Chemistry Practice Questions with Answers (Set 17)

 

1. Ribosomes are made up of how many subunits?

a. 1
c. 3
b. 2
d. 4

2. Which of the following is true of the lagging strand?

a. It is produced more rapidly than the leading strand.
b. It is produced at the same rate as the leading strand.
c. It is produced continuously.
d. It is produced discontinuously.

3. Which of the following is true of the two daughter strands of DNA?

a. They are both synthesized continuously.
b. They are both synthesized discontinuously.
c. The lagging strand is synthesizes continuously, but the leading strand is synthesized discontinuously.
d. The leading strand is synthesizes continuously, but the lagging strand is synthesized
discontinuously.

4. Why is replication called semiconservative?

a. Only some of the leading strand is conserved.
b. Only some of the lagging stand is conserved.
c. Each new molecule of DNA contains one template stand and one daughter strand.
d. All of the above are correct.

5. Which of the following is true of primers that are used by the cell during DNA replication?

a. They are made out of DNA.
b. They are made out of RNA.
c. They are made out of either DNA or RNA.
d. They are proteins.

6. Which type of enzyme is important in DNA fingerprinting?

a. helicases
c. proteases
b. ligases
d. restriction enzymes

7. Which of the following experimental techniques is used in DNA fingerprinting?

a. centrifugation
c. electrophoresis
b. diffraction
d. inking

8. Which of the following correctly classifies this substance?

a. nucleic acid
b. nucleoside
c. nucleotide
d. purine base
e. pyrimidine base

9. Which of the following correctly classifies this substance?

a. nucleoside
b. nucleotide
c. nucleic acid
d. purine base
e. pyrimidine base

10. Which of the following correctly gives the letter sequence that would replace the numbers 1 – 4,
respectively, in the following segment of DNA?

a. AGTC
b. TCAG
c. UCAG
d. CTGA

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