MCQOPTIONS
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MCQOPTIONS
This section includes 30 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following risk are associated with genetically modified food ?1. Toxicity2. Allergic reaction3. Antibiotic resistance in micro-organisms present in alimentary canal |
| A. | 1 and 2 |
| B. | 1, 2 and 3 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» C. 1 and 3 | |
| 2. |
Which of the following vitamin is transformed in golden rice ? |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | <sub>12</sub> |
| D. | Vitamin C |
| E. | Vitamin D |
| Answer» B. Vitamin B | |
| 3. |
Human protein x - 1 - antitrysin is used for which of the following disease ? |
| A. | Cholera |
| B. | Small pox |
| C. | Emphysama |
| D. | Gout |
| Answer» D. Gout | |
| 4. |
Which of the following is reffered as molecular glue ? |
| A. | DNA ligase |
| B. | DNA polymerase |
| C. | Restriction enzyme |
| D. | Topoisomerase |
| Answer» B. DNA polymerase | |
| 5. |
Antibiotic belong to the category of |
| A. | Steroids |
| B. | Toxin |
| C. | Medicine |
| D. | Tonics |
| Answer» D. Tonics | |
| 6. |
Introduction of foreign genes for improving genotype is |
| A. | Tissue culture |
| B. | Immunisation |
| C. | Biotechnology |
| D. | Genetic engineering |
| Answer» C. Biotechnology | |
| 7. |
A genetically engineered form of bringoral known as the Bt-bringal has been developed. The objective of this is |
| A. | To make it pest-resistant |
| B. | To improve its taste and nutritive qualities |
| C. | To make it drought resistant |
| D. | To make its shelf-life longer |
| Answer» B. To improve its taste and nutritive qualities | |
| 8. |
First hormone prepared by genetic engineering is |
| A. | Oxytocin |
| B. | Somato tropin |
| C. | Adrenalin |
| D. | Insulin |
| Answer» E. | |
| 9. |
Which of the following is not use as vector in genetic engineering |
| A. | Plasmida |
| B. | Bacteriophages |
| C. | Anopholes |
| D. | Transposons |
| Answer» D. Transposons | |
| 10. |
The northern blot technique is used for the detection of |
| A. | r RNa |
| B. | m RNA |
| C. | t RNA |
| D. | RNA |
| Answer» E. | |
| 11. |
The southern blot technique is used for the detection of |
| A. | DNA |
| B. | RNA |
| C. | Protein |
| D. | None of these |
| Answer» B. RNA | |
| 12. |
Enzyme TPA or plasminogen activator is used for |
| A. | Dissolving blood clots |
| B. | Maintaining plasma content |
| C. | Clearing turbidity of juices |
| D. | Stimulating thromboplastin production |
| Answer» B. Maintaining plasma content | |
| 13. |
Which one of the following contains powerful oxidative enzymes and help in removing tixic substance from cells ? |
| A. | Plastids |
| B. | Lysomes |
| C. | Dictyosomes |
| D. | Peroxisomes |
| Answer» E. | |
| 14. |
The first product of ancient biotechnology was |
| A. | Alcohol |
| B. | Lactic acid |
| C. | Insulin |
| D. | Steroid |
| Answer» C. Insulin | |
| 15. |
Restriction endoucleases were used by Cohen and Boyer's DNA experiments for |
| A. | Isolation of cloned hacterial plasmids |
| B. | Cleaving the bacterial plasmid |
| C. | Isolation of human insulin |
| D. | Both a and b |
| Answer» E. | |
| 16. |
A method used to distinguish DNA of one invidual from another is |
| A. | DNA sequencing |
| B. | eDNA |
| C. | Hybridisation |
| D. | Restriction fragment length polymorphism |
| Answer» E. | |
| 17. |
The first transgenic crop was |
| A. | Pea |
| B. | Flax |
| C. | Tobacco |
| D. | Cotton |
| Answer» D. Cotton | |
| 18. |
Advancement in genetic engineering has been possible due to discovery of |
| A. | Oncogenes |
| B. | Transposons |
| C. | Restriction endonuclease |
| D. | Exonuclease |
| Answer» D. Exonuclease | |
| 19. |
Biotechnology is |
| A. | Technology used in biology |
| B. | Use of genetic engineering |
| C. | Development of technology for medicine application |
| D. | Use of microoraganisms in industrial process |
| Answer» E. | |
| 20. |
Modified antibiotics are got through |
| A. | Vernalisation |
| B. | Ultrafiltration |
| C. | Ultracentrifuge |
| D. | Genetic engineering |
| Answer» E. | |
| 21. |
The enzymes that are used as molecular scissors to cut DNA at specific sites for various purposes in genetic engineering |
| A. | DNA ligases |
| B. | DNA polymerases |
| C. | Restriction endonucleases |
| D. | Restriction exon leases |
| Answer» D. Restriction exon leases | |
| 22. |
Nuclease enzyme which begin its attach from free end of polynucleotide is |
| A. | Endonuclease |
| B. | Exonuclease |
| C. | Polymerase |
| D. | Kinase |
| Answer» C. Polymerase | |
| 23. |
A DNA library constitutes |
| A. | All the genes in a gene pool |
| B. | All the genes sequenced so far |
| C. | A collection of all the DNA fragments of an organism inserted in plasmid |
| D. | A DNA fragment inserted in a phage. |
| Answer» D. A DNA fragment inserted in a phage. | |
| 24. |
Plasmid are |
| A. | Cytoplasmic organelles which store starch |
| B. | Extra chromosomal DNA elements in bacteria |
| C. | Genes which cause cancer |
| D. | BasiC proteins around which DNA is coiled in encaryotic chromosome |
| Answer» C. Genes which cause cancer | |
| 25. |
Genetic engineering means |
| A. | Meotic division of cells |
| B. | Nucleotide transfer |
| C. | Delation and repair mechanism |
| D. | None of the above |
| Answer» D. None of the above | |
| 26. |
Distribution of clean and quality milk throughout the world has been made possible through work of |
| A. | Leeuwenhook |
| B. | Koch |
| C. | Pasteur |
| D. | Blackman |
| Answer» D. Blackman | |
| 27. |
Restriction enzyme was discovered by ? |
| A. | Smit and Nathans |
| B. | Berger |
| C. | Waksman |
| D. | Fleming |
| Answer» B. Berger | |
| 28. |
Which of the following risk are associated with genetically modified food ? |
| A. | 1 and 2 |
| B. | 1, 2 and 3 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» C. 1 and 3 | |
| 29. |
BE seed is associated with |
| A. | Rice |
| B. | Wheat |
| C. | Cotton |
| D. | Oil seed |
| Answer» D. Oil seed | |
| 30. |
Antibiotics inhibit the growth of or destroying |
| A. | Bacteria |
| B. | Bacteria and viruses |
| C. | Bacteria, fungi and viruses |
| D. | Bacteria, algae and viruses |
| Answer» D. Bacteria, algae and viruses | |