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Molecular Biology Practice Test: DNA, RNA and Protein
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Avg score: 14% Most missed: “Which element of the ribosome plays a key role in mRNA translation?”
DNA, RNA and Protein topics include: DNA history as genetic material, nucleic acids chemical structures, double stranded dna forms, central dogma outlines, ribosomes read the genetic code and rna classes having different  DNA, RNA, and proteins are all essential for life.  DNA and RNA are nucleic acids that carry genetic information. DNA's double helix structure allows this information to be copied and passed on to the next generation.  DNA's gene sequence instructs cells to manufacture a particular protein. RNA is an intermediate language that translates a gene's message into a protein's... Show more
Molecular Biology Practice Test: DNA, RNA and Protein
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25 Questions

1. How many channels are present in the ribosome?
2. Which of the following regarding the basic mechanism of gene expression is correct?
3. According to Mendel’s experiments gene carry genetic information from parents to offspring’s. On which plant did he perform his experiments?
4. How many loops are present in the clover leaf model of tRNA?
5. Which macromolecule is not abundantly found though being of critical importance for biological mechanisms?
6. In 1952, an unambiguous established work in the laboratory of Alexander Todd led to the discovery of _____________
7. Amino acids prior to their incorporation into polypeptide must be attached to a special adaptor molecule. Who proved this and when?
8. Ribosome begins its translation at the 3’ end of the mRNA in prokaryotes.
9. The first X-ray diffraction patterns of DNA were taken in 1938 by ___________
10. The hydrogen bonds formed during A and T bonding occurs between C6NH2 of A and __________
11. Why the variable loop is named so?
12. With respect to the importance of hydrogen bonding and DNA double helix stability, which of the following statements is false?
13. Which of the following is not a characteristic of nucleotide bases?
14. According to Chargaff’s rule the two strands of DNA has ___________
15. Which one of the following is known as the Kozak sequence?
16. With respect to nucleosides which of the following is paired correctly?
17. What was the name of the ribosome binding site?
18. Replication of DNA ends are carried out by polymerase.
19. Eukaryotic mRNAs recruit ribosomes using the Shine – Dalgarno sequence.
20. It is easy to break the bond between A and T than in between G and C.
21. Only a single stranded RNA can pass through the ribosome for decoding.
22. Which of the following is a character of ORF?
23. Who were the first to suggest that one strand of DNA might act as a template for the synthesis of its complementary strand?
24. Which of the following does not take part in gene expression?
25. Definite results proving DNA to be genetic material was given by __________

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