

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 | |