MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Somaclonal variations are produced [MHCET 2001; AIIMS 2005] |
| A. | By mutagens |
| B. | In tissue culture during differentiation |
| C. | By gamma rays |
| D. | By sexual reproduction |
| Answer» C. By gamma rays | |
| 2. |
Which of the following is required in genetic engineering [AIIMS 2001] |
| A. | DNA polymerase |
| B. | RNA polymerase |
| C. | Plasmid |
| D. | Ribosome |
| Answer» D. Ribosome | |
| 3. |
The enzyme restriction endonuclease [CBSE PMT 2000] |
| A. | Cuts RNA strand |
| B. | Cuts double strand of DNA |
| C. | Joins the strands of DNA |
| D. | Cuts single strand of DNA |
| Answer» C. Joins the strands of DNA | |
| 4. |
'Molecular scissors' used in genetic engineering is [KCET 2000] |
| A. | Helicase |
| B. | DNA ligase |
| C. | DNA polymerase |
| D. | Restriction endonuclease |
| Answer» E. | |
| 5. |
The technique involving insertion of a desired gene into the DNA of plasmid vector is known as [KCET 1999; CBSE PMT 2003] |
| A. | Dressing |
| B. | Splicing |
| C. | Cloning |
| D. | Drafting |
| Answer» C. Cloning | |
| 6. |
How many operons are present in the nif part of DNA of Klebsiella |
| A. | Three |
| B. | Four |
| C. | Six |
| D. | Seven |
| Answer» E. | |
| 7. |
Which of the following is related to genetic engineering [AFMC 1997, 99; CBSE PMT 1999; DPMT 2003] |
| A. | Plastid |
| B. | Plasmid |
| C. | Heterosis |
| D. | Mutation |
| Answer» C. Heterosis | |
| 8. |
The latest trend in plant disease control is [Pb. PMT 1999; CBSE PMT 2000] |
| A. | Chemical control |
| B. | Biological control |
| C. | Use of fertilizers |
| D. | Use of disease resistant varieties |
| Answer» E. | |
| 9. |
'Cloning' is meant for [AFMC 1997] |
| A. | Production of HGH gene in E. coli |
| B. | To preserve the genotype of organism |
| C. | To replace the original gene |
| D. | All of these |
| Answer» E. | |
| 10. |
DNA probes are used in human for [MP PMT 1996] |
| A. | Disease diagnosis |
| B. | Disease control |
| C. | Disease resistance |
| D. | Disease tolerance |
| Answer» B. Disease control | |
| 11. |
It is now possible to breed plants and animals with desired characters through [KCET 1994] |
| A. | Genetic engineering |
| B. | Chromosome engineering |
| C. | Ikebana technique |
| D. | Tissue culture |
| Answer» B. Chromosome engineering | |
| 12. |
Ti-plasmids are present in [MP PMT 1996; CBSE PMT 2004; CPMT 2004] |
| A. | Agrobacterium |
| B. | Cymbidium |
| C. | Dendrobium |
| D. | Syzygium |
| Answer» B. Cymbidium | |
| 13. |
Modified antibiotics are manufactured by the technique of [MP PMT 1994] |
| A. | Ultrafiltration |
| B. | Ultracentrifuge |
| C. | Vernalization |
| D. | Genetic engineering |
| Answer» E. | |
| 14. |
Which of the following is important in genetic engineering [MP PMT 1990] |
| A. | DNA polymerase |
| B. | Restriction endonuclease |
| C. | RNA polymerase |
| D. | Nuclease |
| Answer» C. RNA polymerase | |
| 15. |
Restriction enzyme was discovered by [MP PMT 1989] |
| A. | Berg |
| B. | Smith and North |
| C. | Waksman |
| D. | Alexander Fleming |
| Answer» C. Waksman | |
| 16. |
When first time extra DNA fragment was inoculated by plasmid into E. coli |
| A. | 1966 |
| B. | 1970 |
| C. | 1973 |
| D. | 1976 |
| Answer» D. 1976 | |
| 17. |
Exchange of germplasm is carried preferably through shoot tip culture because they are [EAMCET 1988] |
| A. | Genetically stable |
| B. | Small and handy |
| C. | Virus free |
| D. | Cost is very low |
| Answer» D. Cost is very low | |
| 18. |
Reproducing new plants by cells instead of seeds is known as |
| A. | Biofertilizer |
| B. | Tissue culture |
| C. | Mutation |
| D. | Antibiotics |
| Answer» C. Mutation | |
| 19. |
Tissue culture technique requires |
| A. | Complete sterilization |
| B. | pH 5.0 to 6.0 |
| C. | 18 to 25°C temperature |
| D. | All of these |
| Answer» E. | |
| 20. |
Which of the following as a explant use in tissue culture |
| A. | Protoplast |
| B. | New Embryo |
| C. | Pollen |
| D. | All of these |
| Answer» E. | |
| 21. |
The International Centre for Genetic Engineering and Biotechnology established by the United Nations Organization (UNO) is located at |
| A. | New Delhi |
| B. | Paris |
| C. | Tokyo |
| D. | Washington |
| Answer» C. Tokyo | |
| 22. |
Genetically engineered human insulin is manufactured by the use of |
| A. | Pseudomonas |
| B. | Ashbya gossypii |
| C. | Rhizopus |
| D. | Escherichia coli |
| Answer» E. | |
| 23. |
Plasmids are found in |
| A. | Bacteriophage |
| B. | Yeast |
| C. | Volvox |
| D. | Bacteria |
| Answer» E. | |
| 24. |
On the basis of function, which of the following is known as bioscissors |
| A. | Endonucleases |
| B. | Hydrolases |
| C. | Esterases |
| D. | DNA polymerases |
| Answer» B. Hydrolases | |
| 25. |
DNA recombinent technique can be |
| A. | Harmful |
| B. | Useful |
| C. | Both, harmful and useful |
| D. | Neither harmful nor useful |
| Answer» D. Neither harmful nor useful | |
| 26. |
Dwarfing gene of wheat is |
| A. | Pal-1 |
| B. | Atomita-1 |
| C. | Norin-10 |
| D. | Pelita-2 |
| Answer» D. Pelita-2 | |
| 27. |
Which one of the following is regarded as a natural genetic engineer |
| A. | Klebsiella frosteri |
| B. | Bacillus subtites |
| C. | Agrobacterium tumefaciens |
| D. | Neurospora |
| Answer» D. Neurospora | |
| 28. |
Orthodox seeds can be preserved for long periods at a temperature of |
| A. | \[{{196}^{o}}C\] |
| B. | \[{{10}^{o}}\] to \[{{20}^{o}}C\] |
| C. | \[{{0}^{o}}\] \[\text{ }{{4}^{o}}C\] |
| D. | \[{{10}^{o}}\] to \[{{15}^{o}}C\] |
| Answer» C. \[{{0}^{o}}\] \[\text{ }{{4}^{o}}C\] | |
| 29. |
Ex situ conservation is carried out through |
| A. | Funneling the threatened species into trade |
| B. | Offsite collections |
| C. | Gene banks |
| D. | All the above |
| Answer» E. | |
| 30. |
Gene banks comprise |
| A. | Seed banks, orchards, tissue culture and cryopreservation |
| B. | Seed banks, tissue culture and cryopreservation |
| C. | Seed banks and cryopreservation |
| D. | Tissue culture and cryopreservation |
| Answer» B. Seed banks, tissue culture and cryopreservation | |
| 31. |
In situ conservation is carried out through |
| A. | National parks |
| B. | Wild life sanctuaries |
| C. | Biosphere reserves |
| D. | All the above |
| Answer» E. | |
| 32. |
What for is Kew, London, famous [Wardha 2001] |
| A. | Largest herbarium |
| B. | Largest National Park |
| C. | Largest Biological Reserve |
| D. | Maximum diversity of flora and fauna |
| Answer» B. Largest National Park | |
| 33. |
The concept of "Centres of Origin of Cultivated Plants" was given by [Kerala 2000] |
| A. | Swaminathan |
| B. | Mendel |
| C. | Vavilov |
| D. | Borlaug |
| Answer» D. Borlaug | |
| 34. |
Natural resistance to late blight of Potato is present in |
| A. | Solanum tuberosum |
| B. | Solanum acaule |
| C. | S. demissum |
| D. | S. stoloniferum |
| Answer» D. S. stoloniferum | |
| 35. |
A place where endangered genetic materials of plants are kept is [CBSE PMT 2000] |
| A. | Gene library |
| B. | Gene bank |
| C. | Gene pool |
| D. | Herbarium |
| Answer» C. Gene pool | |
| 36. |
A living fossil is [CBSE PMT 1996] |
| A. | Gnetum |
| B. | Ginkgo |
| C. | Riccia |
| D. | Pinus |
| Answer» C. Riccia | |
| 37. |
Reproducing plants by cells instead of seeds is [AMU 1998] |
| A. | Tissue culture |
| B. | Not possible |
| C. | Mutation |
| D. | Amphimixis |
| Answer» B. Not possible | |
| 38. |
An extinct species can be genetically preserved in [CPMT 1996] |
| A. | Gene Bank |
| B. | National park |
| C. | Herbarium |
| D. | None of the above |
| Answer» E. | |
| 39. |
RR-21 is high yielding variety of [MP PMT 1995] |
| A. | Rice |
| B. | Wheat |
| C. | Gram |
| D. | Sugarcane |
| Answer» C. Gram | |
| 40. |
Central Sugarcane Breeding Research Institute is situated at [MP PMT 1995] |
| A. | Coimbatore |
| B. | Lucknow |
| C. | Delhi |
| D. | Bhopal |
| Answer» B. Lucknow | |
| 41. |
Which of the following countries is the centre of origin of Rice [MP PMT 1995] |
| A. | India |
| B. | Japan |
| C. | Indo-Malayan region |
| D. | Russia |
| Answer» B. Japan | |
| 42. |
In India, the largest herbarium is located at [RPMT 1995,96] |
| A. | Dehradun |
| B. | Delhi |
| C. | Lucknow |
| D. | Calcutta |
| Answer» E. | |
| 43. |
Producing new plants by cells instead of seeds is [MP PMT 1994] |
| A. | Tissue culture |
| B. | Biofertilizer |
| C. | Amphimixis |
| D. | meromixis |
| Answer» B. Biofertilizer | |
| 44. |
Preserving germplasm in frozen state is [MP PMT 1994; AMU 1998] |
| A. | Cryopreservation |
| B. | Cold storage |
| C. | In situ preservation |
| D. | Vernalisation |
| Answer» B. Cold storage | |
| 45. |
A plant introduced from New World to Old World is [NCERT 1983; RPMT 1988; CBSE PMT 1993] |
| A. | Rice |
| B. | Sugarcane |
| C. | Potato |
| D. | Wheat |
| Answer» D. Wheat | |
| 46. |
Ginkgo biloba is not now an endangered species because of its [MP PMT 1989; CET Chd. 1994] |
| A. | Ex-situ conservation |
| B. | Offsite conservation |
| C. | In situ conservation |
| D. | Cryopreservation |
| Answer» B. Offsite conservation | |
| 47. |
Virus free clones are obtained from [RPMT 1988; CPMT 1995; BHU 1996; DPMT 1997] |
| A. | Callus |
| B. | Embryoids |
| C. | Haploid culture |
| D. | Shoot tip culture |
| Answer» E. | |
| 48. |
Genetic erosion is due to [CBSE PMT 1989] |
| A. | Deforestation |
| B. | Shifting cultivation |
| C. | Adoption of genetically uniform varieties |
| D. | All the above |
| Answer» E. | |
| 49. |
In a gene bank, genetic material is stored as [DPMT 1986] |
| A. | Genes |
| B. | Seeds |
| C. | Vegetative material/tissue culture |
| D. | Both b and c |
| Answer» E. | |
| 50. |
Dwarf Wheats were evolved by [RPMT 1987] |
| A. | Swaminathan |
| B. | Vavilov |
| C. | Khush |
| D. | Borlaug |
| Answer» E. | |