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Home⇒ Medical Science⇒ Biotechnology⇒ Special proteins and crop improvement
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ 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? Meristem tip cultures [other wrong options] [Discuss in forum] Embryo cultures Both (a) and (b) Embryo cultures supplemented with GA3 and coconut milk |
Q2 ⇒ For increased level of mannitol in transgenic tobacco plants which of the following gene is transferred? Mannitol dehydrogenase [other wrong options] [Discuss in forum] Mannitol synthease Both (a) and (b) Mannitol pyrophosphorylase |
Q3 ⇒ Microinjection technique of introducing NA is a physical method [other wrong options] [Discuss in forum] biological method combination of physical and biological method chemical method |
Q4 ⇒ Which of the following constituent/(s) is/are added to help in speedy generation of meristem culture in case of Ipomoea batatas improvement? Both (a) and (b) [other wrong options] [Discuss in forum] Auxins Cytokinins Adenine |
Q5 ⇒ Which of the following has been confirmed on sugarcane genotypes? Bacilliform virus [other wrong options] [Discuss in forum] Cytomegalovirus Varicella-zoster virus Erythrovirus |
Q6 ⇒ 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. tumefaciens [other wrong options] [Discuss in forum] L. peruvianum L. birsutum A. sterilis |
Q7 ⇒ Protoplast fusion technique generally involves isolation, fusion and culturing [other wrong options] [Discuss in forum] isolation only isolation and fusion hybridization between two species |
Q8 ⇒ Which of the following is the class of hybridization? all of these [other wrong options] [Discuss in forum] Intervarietal Interspecific Intergeneric |
Q9 ⇒ Which of the following technique can be used to develop nematode resistant plants? All of these [other wrong options] [Discuss in forum] Embryo-rescue Mutation Non-recombinant DNA |
Q10 ⇒ Wheat variety Rendezvous, with resistance to eye spot (Pseudo-cercosporella herpotrichoides) derived from Aegilops ventricosa, has a chloroplast genome derived from Aegilops [other wrong options] [Discuss in forum] Triticum Both (a) and (b) S alleles |
Q11 ⇒ Plant tissue culture technique is used to select somaclones that are resistant to herbicide [other wrong options] [Discuss in forum] not resistant to herbicide resistant to insecticides not resistant to insecticides |
Q12 ⇒ The tumor phenotype, which can be maintained indefinitely in tissue culture, results from the expression of genes on the T-DNA [other wrong options] [Discuss in forum] c-DNA r-DNA m-RNA |
Q13 ⇒ The hybrid embryo can be rescued from damage/collapse by growing it in artificial medium [other wrong options] [Discuss in forum] at low temperature at low pH at low water activity |
Q14 ⇒ α and β cyclo dextrins are used for all of the above [other wrong options] [Discuss in forum] pharmaceutical delivery system flavour and odour enhancement in foods removal of undesired compounds like caffeine from foods |
Q15 ⇒ When the transposon jumps into an otherwise functional gene, it has the effect of blocking correct transcription [other wrong options] [Discuss in forum] initiating correct transcription propagating correct transcription initiating some genetic codes |
Q16 ⇒ Human serum albumin has been synthesized by transgenic potato and tobacco plants [other wrong options] [Discuss in forum] transgenic maize plants transgenic wheat plants any of the above |
Q17 ⇒ Commercial sugarcane is heterozygons with germplasm from 3-5 Saccharum species [other wrong options] [Discuss in forum] 1-3 Saccharum species 5-7 Saccharum species 7-9 Saccharum species |
Q18 ⇒ Somaclonal variation method refers to heritable changes [other wrong options] [Discuss in forum] genetic isolation small number of species having limited commercial potential large number of plant cells |
Q19 ⇒ In transgenic plants of Arabidipsis thaliana which of the following gene is transferred for the synthesis of PHB (polyhdroxybutyrate)? Both (a) and (b) [other wrong options] [Discuss in forum] Acetyl Co A reductase Polyhydroxybutyrate synthease Pyrophosphorylase |
Q20 ⇒ Random amplified polymorphic DNA (RAPD) is a method that reveals intra-specific variation and diversity between species [other wrong options] [Discuss in forum] stimulate production of sense RNA to compensate activate the expression of all genes in a biochemical pathway eliminate the expression of all genes in a biochemical pathway |
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