Special Proteins and Crop Improvement MCQs : This section focuses on the "Special Proteins and Crop Improvement". These Multiple Choice Questions (MCQs) should be practiced to improve the Special Proteins and Crop Improvement skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Which of the following has been confirmed on sugarcane genotypes?
A. Bacilliform virus
B. Cytomegalovirus
C. Varicella-zoster virus
D. Erythrovirus
Question 2
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
Question 3
Human serum albumin has been synthesized by
A. transgenic potato and tobacco plants
B. transgenic maize plants
C. transgenic wheat plants
D. Any of these
Question 4
Avermectins (AVM) are macrocyclic lactones which have potent antihelminthic and insecticidal action. They are generally derived from the mycelia of
A. Streptomyces avermitilis
B. B. thrunigiensis
C. P. flourescens
D. L. peruvianum
Question 5
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
Question 6
Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?
A. Meristem tip cultures
B. Embryo cultures
C. Both A and B
D. Embryo cultures supplemented with GA3 and coconut milk
Question 7
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
Question 8
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 the above
Question 9
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
Question 10
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. A. tumefaciens
B. L. peruvianum
C. L. birsutum
D. A. sterilis
Question 11
Which of the following govern sporophytic self-incompatibility in Brassica?
A. Aegilops
B. Triticum
C. Both A and B
D. S alleles
Question 12
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
Question 13
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
Question 14
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
Question 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
Question 16
Meristem culture of banana enables
A. rapid multiplication
B. elimination of bunch top virus disease
C. Both A and B
D. slow growth
Question 17
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
Question 18
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
Question 19
Protoplast fusion technique generally involves
A. isolation only
B. isolation and fusion
C. isolation, fusion and culturing
D. hybridization between two species
Question 20
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
Question 21
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
Question 22
Cultivated tomato species (Lycopersicon esculentum) has a high degree of resistance towards
A. Meloidogyne spp.nematodes
B. L. peruviaanum
C. both (a) and (b)
D. Solarium melongena
Question 23
Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to
A. Meloidogyne spp. nematodes
B. L. peruviaanum
C. both (a) and (b)
D. Solarium melongena
Question 24
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
Question 25
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
Question 26
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
Question 27
α and β cyclo dextrins are produced by
A. transgenic tomato
B. transgenic maize
C. transgenic potato
D. transgenic wheat
Question 28
α and β 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
Question 29
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
Question 30
Meristem culture of banana enables
A. rapid multiplication
B. elimination of bunch top virus disease
C. both (a) and (b)
D. slow growth
Question 31
Microinjection technique of introducing NA is a
A. physical method
B. biological method
C. combination of physical and biological method
D. chemical method
Question 32
MS medium, is found essential for initial morphogenesis of the immature embryos and to enhance callus development, when supplemented with
A. GA3
B. GA3 and coconut milk
C. adenine
D. adenine and kinetin
Question 33
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
Question 34
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
Question 35
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
Question 36
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
Question 37
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
Question 38
Which of the following govern sporophytic self-incompatibility in Brassica?
A. Aegilops
B. Triticum
C. Both (a) and (b)
D. S alleles
Question 39
Which of the following have been used for cryo-preservation of germplasm with 90% tissue survival and 10%plant regeneration that are used in international exchange of germplasm?
A. Meristem tip cultures
B. Embryo cultures
C. Both (a) and (b)
D. Embryo cultures supplemented with GA3 and coconut milk
Question 40
Which of the following is the class of hybridization?
A. Intervarietal
B. Interspecific
C. Intergeneric
D. all of these
Question 41
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
Question 42
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