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.... 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... 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...

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 Microinjection technique of introducing NA is a A. physical method B. biological method C. combination of physical and biological method D. chemical method 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.....

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 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 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).....

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 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 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....

T-DNA transfer and processing into plant genome requires products of which of the following genes? A. vir A,B B. vir G,C C. vir D,E D. All of these Because of large size of Ti-plasmid, intermediate vectors (IV) are developed in which T DNA has been subcloned into A. pBR 322 based plasmid vector B. pRK 2013 C. pRN 3 D. Sll of these... The transfer of intermediate vectors into Agrobacterium are brought about by A. transformation B. biparental mating C. triparental mating D. transduction....

Opines that are present in crown gall tumour include A. octopine B. nopaline C. agropine D. all of these Intermediate vectors containing T-DNA are conjugation deficient. Thus conjugation is mediated in presence of which of the following plasmid? A. pRK 2013 B. pRN 3 C. either (a) or (b) Which of the following is true about T DNA? A. Integration of T DNA can occur at many different, apparently random, sites in the plant nuclear DNA B. Integration of T DNA occurs only at one specific sites in the plant nuclear DNA C. Integration of T DNA occurs at two specific sites in the plant nuclear DNA....

Which of the following is true about Agrobacterium tumefaciens? A. It causes crown gall disease of plants B. It infects gymosperms C. It infects dicotyledonous angiosperms D. All of the above In the liposome mediated gene transfer in plants, nucleic acids are A. protected from nuclease digestion B. stable in liposomes C. both (a) and (b) D. not stable in liposomes Advantage of microprojectile method over microinjection method for gene transfer in plants include A. intact cells are used B. method is universal in its application irrespective of all shape, size, type and presence or absence of cell wall.....

Virulence trait of Agrobacterium tumefaciens is borne on A. chromosomal DNA B. tumour inducing plasmid DNA C. both chromosomal and plasmid DNA D. cryptic plasmid DNA... The size of the virulent plasmid of Agrobacterium tumefaciens is A. 40-80 kb B. 80-120 kb C. 140-235 kb D. >235 kb... Which of the following is not true about the helper plasmids? A. These can replicate in Agrobacterium B. These help in the mediating conjugation of intermediate vectors C. These can't replicate in Agrobacterium....

Protoplasts are the cells devoid of A. cell membrane B. cell wall C. both cell wall and cell membrane D. none of these Which breeding method uses a chemical to strip the cell wall of plant cells of two sexually incompatible species? A. Mass selection B. Protoplast fusion C. Transformation D. Transpiration.... In a callus culture A. increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation B. increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation C. auxins and cytokinins are not required D. only auxin is required for root and shoot formation...

When guard cells swell A. stomata close B. stomata open C. photosynthesis stops D. evaporation stops View Answer Workspace Report Discuss in Forum.... Water moves into roots of plants by A. osmosis B. active transport C. diffusion D. pressure flow mechanism.... The cohesion-tension theory of water movement helps to explain how water moves from soil into root? A. Through the phloem B. From leaf to root C. Through the xylem D. Into the guard cells.....