MCQOPTIONS
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MCQOPTIONS
This section includes 38 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Recombinant DNA contains DNA from |
| A. | 2 different sources |
| B. | 3 different sources |
| C. | 2 same sources |
| D. | 3 same sources |
| Answer» B. 3 different sources | |
| 2. |
First restriction enzyme was isolated by |
| A. | Kary Mullis |
| B. | Hamilton O. Smith |
| C. | Maxam Gilbert |
| D. | Hamilton John |
| Answer» C. Maxam Gilbert | |
| 3. |
Commonly used restriction enzyme is |
| A. | PSC 101 |
| B. | PBR 322 |
| C. | EcoRI |
| D. | All of these |
| Answer» D. All of these | |
| 4. |
Natural extrachromosomal circular DNA molecules earrying genes for antibiotic resistance and fertility |
| A. | Recombinant DNA |
| B. | Chimaeric DNA |
| C. | Lambda phage |
| D. | Plasmids |
| Answer» E. | |
| 5. |
Which one has antibiotic resistance gene for tetracycline and ampicillin? |
| A. | PSC 101 |
| B. | PBR 322 |
| C. | PCR 322 |
| D. | None of these |
| Answer» C. PCR 322 | |
| 6. |
The enzyme which seals the foreign DNA into the vector is |
| A. | Restriction endonuclease |
| B. | DNA polymerase |
| C. | DNA ligase |
| D. | DNA mutase |
| Answer» D. DNA mutase | |
| 7. |
Chimaeric DNA is also known as |
| A. | Recombinant DNA |
| B. | Complementary DNA |
| C. | Vector |
| D. | Plasmid |
| Answer» B. Complementary DNA | |
| 8. |
Plants are totipotent because |
| A. | Each cell has full genetic potential of the organism |
| B. | A single cell could become a complete plant |
| C. | Both a and b |
| D. | Because they have lesser potential for tissue culturing |
| Answer» C. Both a and b | |
| 9. |
Coconut milk contains the plant hormone |
| A. | Auxins |
| B. | Cytokinins |
| C. | Gibberallins |
| D. | All of these |
| Answer» C. Gibberallins | |
| 10. |
Cell suspension cultures of |
| A. | Cinchona produces quinine |
| B. | Digitalis lanata produce digitoxin |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 11. |
A device that bombards a callus with DNA coated microscopic metal particles is |
| A. | DNA gun |
| B. | DNA shooter |
| C. | Particle gun |
| D. | All of these |
| Answer» D. All of these | |
| 12. |
Salt tolerant plants are |
| A. | Cadabidopsis |
| B. | Nemodopsis |
| C. | Saltdopsis |
| D. | Arabidopsis |
| Answer» E. | |
| 13. |
Which of these is a true statement? |
| A. | Both plasmids and viruses can serve as vectors. |
| B. | Plasmids can carry recombinant DNA but viruses cannot |
| C. | Vectors carry only the foreign gene into the host cell. |
| D. | Only gene therapy uses vector. |
| Answer» B. Plasmids can carry recombinant DNA but viruses cannot | |
| 14. |
Some transgenic bacteria produce a dipeptide sweetener called |
| A. | Ultrasweet |
| B. | Disweet |
| C. | Monosweet |
| D. | Neutrasweet |
| Answer» E. | |
| 15. |
Which of these would you not expect to be a biotechnology product? |
| A. | Vaccine |
| B. | DNA probes |
| C. | Proteins |
| D. | Steroid hormones |
| Answer» E. | |
| 16. |
Transgenic plants are produced when foreign genes are introduced into |
| A. | Mature plant embryo |
| B. | Immature plant embryo |
| C. | Roots |
| D. | Leaves |
| Answer» C. Roots | |
| 17. |
Protoplasts are plant cells from which |
| A. | Cell walls are removed |
| B. | Nucleus is removed |
| C. | New organelles are added |
| D. | Vacuoles are taken out |
| Answer» B. Nucleus is removed | |
| 18. |
A weed engineered to produce a biodegradable plastic in cell granules is |
| A. | Mouse-cat cress |
| B. | Mouse weed |
| C. | Mouse-eared cress |
| D. | None of these |
| Answer» D. None of these | |
| 19. |
An antibody made by soybeans can be used to treat |
| A. | Herpes zoster |
| B. | Sickle cell anemia |
| C. | Measles |
| D. | Genital berpes |
| Answer» E. | |
| 20. |
In vortex method of transgenic animals gene is inserted |
| A. | By hand |
| B. | Into egg |
| C. | Both by hands and into eggs |
| D. | Is not applicable |
| Answer» C. Both by hands and into eggs | |
| 21. |
Two methods for gene therapy are |
| A. | In-vivo and ex-vitro |
| B. | Ex-vivo and in-vivo |
| C. | Both of these |
| D. | None of these |
| Answer» C. Both of these | |
| 22. |
For biotechnology products which is the preferable vehicle |
| A. | Urine |
| B. | Milk |
| C. | Sweet |
| D. | Hairs |
| Answer» B. Milk | |
| 23. |
Plasmid do not carry gene for |
| A. | Antibiotic resistance |
| B. | Fertility |
| C. | Growth |
| D. | Both b and c |
| Answer» D. Both b and c | |
| 24. |
In cystic fibrosis patient lacks a gene for the transmembrane carrier of the |
| A. | Magnesium ion |
| B. | Calcium ion |
| C. | Cholesterol |
| D. | Chloride ion |
| Answer» E. | |
| 25. |
Cumulus cells are those that |
| A. | Remain with follicular cells after ovulation occurs |
| B. | Form corpus luteum |
| C. | Form lining of the ovary |
| D. | Cling to the egg after ovulation occurs |
| Answer» E. | |
| 26. |
Full set of genes of an individual is called |
| A. | Genotype |
| B. | Genomic library |
| C. | Genome pool |
| D. | Genome |
| Answer» E. | |
| 27. |
Transgenic bacteria are produced in large vats called |
| A. | Transducer |
| B. | Biomultiplier |
| C. | Bioreactor |
| D. | Culture media |
| Answer» D. Culture media | |
| 28. |
Which of the following is correct about SCID? |
| A. | Common in children as well as in adults |
| B. | It is an immune disorder |
| C. | Is due to deficiency of adenosine diaminase |
| D. | Both b and c |
| Answer» C. Is due to deficiency of adenosine diaminase | |
| 29. |
Tissue culture does not involve |
| A. | Growth of tissue in artificial medium |
| B. | Asexual reproduction |
| C. | Use of meristem |
| D. | Use of generative nucleus in pollen culture |
| Answer» E. | |
| 30. |
Which of these is incorrectly matched? |
| A. | Protoplast-plant cell engineering |
| B. | RFLPs-DNA fingerprinting |
| C. | DNA polymerase-PCR |
| D. | DNA ligase-Mapping human chromosome |
| Answer» E. | |
| 31. |
Lambda phage is |
| A. | Virus |
| B. | Bacterium |
| C. | Plasmid |
| D. | Host cell |
| Answer» B. Bacterium | |
| 32. |
A genomic library is a collection of |
| A. | Bacterial clones |
| B. | Bacteriophage clones |
| C. | Viral clones |
| D. | Both a and b |
| Answer» E. | |
| 33. |
Which statement is not true about PCR? |
| A. | Developed by Kary Mullis |
| B. | Take its name from DNA polymerase |
| C. | Is not very specific |
| D. | Taq polymerase is used |
| Answer» D. Taq polymerase is used | |
| 34. |
A single stranded nucleotide sequence that will hybridize into a certain piece of DNA is |
| A. | Primer |
| B. | Probe |
| C. | Genome |
| D. | Both a & b |
| Answer» E. | |
| 35. |
Taq polymerase is extracted from a bacterium |
| A. | Floral aquaticus |
| B. | Taq aquaticus |
| C. | Thermus floral |
| D. | Thermus aquaticus |
| Answer» E. | |
| 36. |
DNA analysis is done to |
| A. | Diagnose viral infections |
| B. | Identify criminals |
| C. | Determine evolution |
| D. | All of these |
| Answer» E. | |
| 37. |
Human genome is ______ times larger than any other genome sequenced so far |
| A. | 45 |
| B. | 35 |
| C. | 25 |
| D. | 15 |
| Answer» D. 15 | |
| 38. |
Organisms that have had a foreign gene inserted into them are |
| A. | Transformed organisms |
| B. | Transgenic organisms |
| C. | Transfigured organisms |
| D. | Recombinant organisms |
| Answer» C. Transfigured organisms | |