MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify the compound. |
| A. | Adenine |
| B. | Adenylic acid |
| C. | Adenosine |
| D. | Adenylyl cyclase |
| Answer» D. Adenylyl cyclase | |
| 2. |
What type of sugar does DNA contain? |
| A. | Ribose |
| B. | 3’ deoxyribose |
| C. | 2’ deoxyribose |
| D. | 5’ deoxyribose |
| Answer» D. 5’ deoxyribose | |
| 3. |
Which of these is a substituted purine? |
| A. | Cytosine |
| B. | Thymine |
| C. | Uracil |
| D. | Guanine |
| Answer» E. | |
| 4. |
The distinct components of nucleotides are phosphate group, heterocyclic compound and polysaccharide. True or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The phosphate groups present in nucleotides are related to ______ |
| A. | pyrophosphoric acid |
| B. | phosphorous acid |
| C. | phosphoric acid |
| D. | metaphosphoric acid |
| Answer» D. metaphosphoric acid | |
| 6. |
Which monosaccharide is present in nucleic acid? |
| A. | Fructose |
| B. | Galactose |
| C. | Glucose |
| D. | Ribose |
| Answer» E. | |
| 7. |
Which of these components of nucleotides is heterocyclic? |
| A. | Adenine |
| B. | Phosphoric acid |
| C. | Monosaccharide |
| D. | Phosphate |
| Answer» B. Phosphoric acid | |
| 8. |
How many distinct components does each nucleoside contain? |
| A. | 3 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 9. |
How many distinct components does each nucleotide contain? |
| A. | 2 |
| B. | 3 |
| C. | 1 |
| D. | 4 |
| Answer» C. 1 | |
| 10. |
What is the building block of nucleic acids? |
| A. | Nucleotide |
| B. | Nucleoside |
| C. | Nucleosome |
| D. | Nucleoprotein |
| Answer» B. Nucleoside | |
| 11. |
Which of these is not a part of the macromolecular fraction of a cell? |
| A. | Polynucleotides |
| B. | Polysaccharides |
| C. | Riboflavin |
| D. | Polypeptides |
| Answer» D. Polypeptides | |
| 12. |
Nucleic acids are _____ |
| A. | polypeptides |
| B. | polyimides |
| C. | polynucleotides |
| D. | polysaccharides |
| Answer» D. polysaccharides | |
| 13. |
Which of these is present in the acid insoluble fraction of living tissue? |
| A. | ascorbic acid |
| B. | Magnesium |
| C. | Riboflavin |
| D. | DNA |
| Answer» E. | |