MCQOPTIONS
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MCQOPTIONS
This section includes 39 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In transgenic plants of which of the following gene is transferred for the synthesis of PHB (polyhdroxybutyrate)? |
| A. | Acetyl Co A reductase |
| B. | Polyhydroxybutyrate synthease |
| C. | Both (a) and (b) |
| D. | Pyrophosphorylase |
| Answer» D. Pyrophosphorylase | |
| 2. |
Cultivated tomato species () is highly susceptible to |
| A. | both (a) and (b) |
| Answer» B. | |
| 3. |
cDNA clone prepared to stigma mRNA of can be used as a probe on DNA digests of segregating populations to recognize |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» E. | |
| 4. |
Wheat variety Rendezvous, with resistance to eye spot () derived from , has a chloroplast genome derived from |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» B. Triticum | |
| 5. |
Which of the following govern sporophytic self-incompatibility in ? |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» E. | |
| 6. |
Cultivated tomato species () has a high degree of resistance towards |
| A. | both (a) and (b) |
| Answer» C. | |
| 7. |
Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of improvement? |
| A. | Auxins |
| B. | Cytokinins |
| C. | Both (a) and (b) |
| D. | Adenine |
| Answer» D. Adenine | |
| 8. |
Which of the following mutant/(s) has/have increased amount of lysine and/or methionine in corn seeds? |
| A. | Opaque-2 |
| B. | Sugary-1 |
| C. | Flory-2 |
| D. | All of these |
| Answer» E. | |
| 9. |
When the transposon jumps into an otherwise functional gene, it has the effect of |
| A. | blocking correct transcription |
| B. | initiating correct transcription |
| C. | propagating correct transcription |
| D. | initiating some genetic codes |
| Answer» B. initiating correct transcription | |
| 10. |
Cultivated tomato species (Lycopersicon esculentum) has a high degree of resistance towards |
| A. | <i>Meloidogyne spp.nematodes</i> |
| B. | <i>L. peruviaanum</i> |
| C. | both (a) and (b) |
| D. | <i>Solarium melongena</i> |
| Answer» C. both (a) and (b) | |
| 11. |
Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of Ipomoea batatas improvement? |
| A. | Auxins |
| B. | Cytokinins |
| C. | Both (a) and (b) |
| D. | Adenine |
| Answer» D. Adenine | |
| 12. |
cDNA clone prepared to stigma mRNA of Brassica oleracea can be used as a probe on DNA digests of segregating populations to recognize |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» E. | |
| 13. |
Cytoplast (somatic cell hybridization) is the process in which |
| A. | two protoplast along with their nuclei fuse |
| B. | a normal protoplast along with an enucleated protoplast fuse |
| C. | both (a) and (b) |
| D. | two enucleated protoplasts fuse |
| Answer» D. two enucleated protoplasts fuse | |
| 14. |
Which of the following is the class of hybridization? |
| A. | Intervarietal |
| B. | Interspecific |
| C. | Intergeneric |
| D. | all of these |
| Answer» E. | |
| 15. |
For increased level of mannitol in transgenic tobacco plants which of the following gene is transferred? |
| A. | Mannitol dehydrogenase |
| B. | Mannitol synthease |
| C. | Both (a) and (b) |
| D. | Mannitol pyrophosphorylase |
| Answer» B. Mannitol synthease | |
| 16. |
Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to |
| A. | <i>Meloidogyne spp. nematodes</i> |
| B. | <i>L. peruviaanum</i> |
| C. | both (a) and (b) |
| D. | <i>Solarium melongena</i> |
| Answer» B. <i>L. peruviaanum</i> | |
| 17. |
Microinjection technique of introducing NA is a |
| A. | physical method |
| B. | biological method |
| C. | combination of physical and biological method |
| D. | chemical method |
| Answer» B. biological method | |
| 18. |
Protoplast fusion technique generally involves |
| A. | isolation only |
| B. | isolation and fusion |
| C. | isolation, fusion and culturing |
| D. | hybridization between two species |
| Answer» D. hybridization between two species | |
| 19. |
Which of the following technique can be used to develop nematode resistant plants? |
| A. | Embryo-rescue |
| B. | Mutation |
| C. | Non-recombinant DNA |
| D. | All of these |
| Answer» E. | |
| 20. |
Random amplified polymorphic DNA (RAPD) is a method that |
| A. | stimulate production of sense RNA to compensate |
| B. | activate the expression of all genes in a biochemical pathway |
| C. | eliminate the expression of all genes in a biochemical pathway |
| D. | reveals intra-specific variation and diversity between species |
| Answer» E. | |
| 21. |
Commercial sugarcane is heterozygons with germplasm from |
| A. | 1-3 Saccharum species |
| B. | 3-5 Saccharum species |
| C. | 5-7 Saccharum species |
| D. | 7-9 Saccharum species |
| Answer» C. 5-7 Saccharum species | |
| 22. |
Which of the following govern sporophytic self-incompatibility in Brassica? |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» E. | |
| 23. |
Somaclonal variation method refers to |
| A. | heritable changes |
| B. | genetic isolation |
| C. | small number of species having limited commercial potential |
| D. | large number of plant cells |
| Answer» B. genetic isolation | |
| 24. |
and cyclo dextrins are produced by |
| A. | transgenic tomato |
| B. | transgenic maize |
| C. | transgenic potato |
| D. | transgenic wheat |
| Answer» D. transgenic wheat | |
| 25. |
and cyclo dextrins are used for |
| A. | pharmaceutical delivery system |
| B. | flavour and odour enhancement in foods |
| C. | removal of undesired compounds like caffeine from foods |
| D. | all of the above |
| Answer» E. | |
| 26. |
Meristem culture of banana enables |
| A. | rapid multiplication |
| B. | elimination of bunch top virus disease |
| C. | both (a) and (b) |
| D. | slow growth |
| Answer» D. slow growth | |
| 27. |
Wheat variety Rendezvous, with resistance to eye spot (Pseudo-cercosporella herpotrichoides) derived from Aegilops ventricosa, has a chloroplast genome derived from |
| A. | Aegilops |
| B. | Triticum |
| C. | Both (a) and (b) |
| D. | S alleles |
| Answer» B. Triticum | |
| 28. |
The intervention in the communication system of nematodes offer several possibilities of bio control. Which of the following(s) play(s) a very important role in the host recognition? |
| A. | Protein |
| B. | Lipid |
| C. | Carbohydrate moiety |
| D. | Minerals |
| Answer» D. Minerals | |
| 29. |
Human serum albumin has been synthesized by |
| A. | transgenic potato and tobacco plants |
| B. | transgenic maize plants |
| C. | transgenic wheat plants |
| D. | any of the above |
| Answer» B. transgenic maize plants | |
| 30. |
The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the |
| A. | T-DNA |
| B. | c-DNA |
| C. | r-DNA |
| D. | m-RNA |
| Answer» B. c-DNA | |
| 31. |
Establishment of embryogenic cell suspensions with high regeneration potential is a pre-requisite for successful |
| A. | protoplast culture |
| B. | detection of nucleic acid sequence |
| C. | restriction of fragment length polymorphisms |
| D. | microinjection |
| Answer» B. detection of nucleic acid sequence | |
| 32. |
Which of the following transfers a set of genes encoded in a region called T-DNA of the Ti-plasmid into cells at wound positions? |
| A. | <i>A. tumefaciens</i> |
| B. | <i>L. peruvianum</i> |
| C. | <i>L. birsutum</i> |
| D. | <i>A. sterilis</i> |
| Answer» B. <i>L. peruvianum</i> | |
| 33. |
Human serum albumin in case of transgenic plant is secreted in |
| A. | transgenic leaf tissues |
| B. | transgenic root tissues |
| C. | is not secreted out of plant |
| D. | transgenic stem tissues |
| Answer» B. transgenic root tissues | |
| 34. |
Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of |
| A. | <i>Streptomyces avermitilis</i> |
| B. | <i>B. thrunigiensis</i> |
| C. | <i>P. flourescens</i> |
| D. | <i>L. peruvianum</i> |
| Answer» B. <i>B. thrunigiensis</i> | |
| 35. |
Plant tissue culture technique is used to select somaclones that are |
| A. | resistant to herbicide |
| B. | not resistant to herbicide |
| C. | resistant to insecticides |
| D. | not resistant to insecticides |
| Answer» B. not resistant to herbicide | |
| 36. |
Which of the following has been confirmed on sugarcane genotypes? |
| A. | Bacilliform virus |
| B. | Cytomegalovirus |
| C. | Varicella-zoster virus |
| D. | Erythrovirus |
| Answer» B. Cytomegalovirus | |
| 37. |
The hybrid embryo can be rescued from damage/collapse by growing it |
| A. | at low temperature |
| B. | at low pH |
| C. | at low water activity |
| D. | in artificial medium |
| Answer» E. | |
| 38. |
Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be |
| A. | 3-deoxyanthocyanidin |
| B. | luteolinidin |
| C. | apigeninidin |
| D. | 5-0 apigeninidin |
| Answer» B. luteolinidin | |
| 39. |
In transgenic plants of Arabidipsis thaliana which of the following gene is transferred for the synthesis of PHB (polyhdroxybutyrate)? |
| A. | Acetyl Co A reductase |
| B. | Polyhydroxybutyrate synthease |
| C. | Both (a) and (b) |
| D. | Pyrophosphorylase |
| Answer» D. Pyrophosphorylase | |