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Special Proteins and Crop Improvement MCQ Questions & Answers

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

Protoplast fusion technique generally involves

A. isolation only
B. isolation and fusion
C. isolation, fusion and culturing
D. hybridization between two species

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Question 2

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

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Question 3

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

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Question 4

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

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Question 5

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

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Question 6

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

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Question 7

Meristem culture of banana enables

A. rapid multiplication
B. elimination of bunch top virus disease
C. both (a) and (b)
D. slow growth

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Question 8

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

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Question 9

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

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Question 10

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

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Question 11

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

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Question 12

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

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Question 13

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

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Question 14

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

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Question 15

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

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Question 16

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

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Question 17

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

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Question 18

Which of the following govern sporophytic self-incompatibility in Brassica?

A. Aegilops
B. Triticum
C. Both A and B
D. S alleles

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Question 19

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

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Question 20

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

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Question 21

Which of the following is the class of hybridization?

A. Intervarietal
B. Interspecific
C. Intergeneric
D. all of these

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Question 22

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

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Question 23

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

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Question 24

Microinjection technique of introducing NA is a

A. physical method
B. biological method
C. combination of physical and biological method
D. chemical method

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Question 25

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

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Question 26

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

View Answer

Question 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

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Question 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

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Question 29

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

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Question 30

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

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Question 31

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

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Question 32

Cultivated tomato species (Lycopersicon esculentum) is highly susceptible to

A. Meloidogyne spp. nematodes
B. L. peruviaanum
C. both (a) and (b)
D. Solarium melongena

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Question 33

α and β cyclo dextrins are produced by

A. transgenic tomato
B. transgenic maize
C. transgenic potato
D. transgenic wheat

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Question 34

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

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Question 35

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

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Question 36

Which of the following govern sporophytic self-incompatibility in Brassica?

A. Aegilops
B. Triticum
C. Both (a) and (b)
D. S alleles

View Answer

Question 37

Meristem culture of banana enables

A. rapid multiplication
B. elimination of bunch top virus disease
C. Both A and B
D. slow growth

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Question 38

Which of the following has been confirmed on sugarcane genotypes?

A. Bacilliform virus
B. Cytomegalovirus
C. Varicella-zoster virus
D. Erythrovirus

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Question 39

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

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Question 40

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

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Question 41

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

View Answer

Question 42

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

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