8. The subunits of proteins are A. nuclcotides. B. phospholipids. C. . amino aci

Question

8. The subunits of proteins are A. nuclcotides. B. phospholipids. C. . amino acids D. carbohydrates. 9. The carbohydrate(s) found in nucleic acids is/are A. ribose. B. glucose. C. galactose D. deoxyribose. E. ribose AND deoxyribose 10. What type of bonding holds one strand of DNA to the complementary strand of A. covalent bond B. hydrogen bond C. disulfide bond D. ionic bond 11. Which of the following is found in RNA but not in DNA? A. thymine B. uracil C. ribose D. ribose and thymine E. ribose AND uracil 12. Which of the following complementary base pairing is incorrect? A. A:T B. G:C C. G:T D. A:U 13. There are sense codons in a codon map to code for the 20 possible amino acids A. 20 B. 30 C. 64 D. 61 14. The mechanism by which genes are transferred into bacteria via viruses is called A. transcription B. replication. D. transduction. E. conjugation. C. transformation. 15. In conjugation the donor cell is characterized by the presence of A. an F plasmid. B. a Y chromosome. C. diploid chromosomes. D. an SOS response. F an F plasmid AND diploid chromosomes.

Explanation / Answer

8) The subunits of proteins are

C. amino acids

9) Thhe carbohydrates found in nucleic acids are

E. Ribose and deoxyribose

10) Bond holds one strand of DNA to the complementary strand of DNA

B. Hydrogen bond

11) E. Ribose and uracil are present in RNA but not in DNA

12) C. G:T complementary base pairing is incorrect

13) D. There are 61 sense codons in a codon map to code for 20 possible amino acids

14) The mechanism by which genes are transferred into bacteria via viruses is called

D. Transduction

15) In conjugation the donor cells is characterised by presence of

E. An F plasmid and diploid chromosome

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