Author: admin

Q.69 Which ONE of the following mutants is used to carry out genetic analysis to determine the functionof an essential gene?(A) Knock out mutant (B) Deletion mutant(C) Insertion mutant (D) Temperature […]

Q.68 An auxotrophic mutant arises spontaneously in a wild type E.coli culture growing in a rich medium.Which ONE of the following techniques will ensure the isolation of the auxotrophic mutant?(A) Replica […]

Q.67 Bergey’s Manual of Systematic Bacteriology groups bacteria into species according to their(A) nutritional requirement(B) phylogenetic relationships(C) pathogenic properties(D) morphology Bergey’s Manual of Systematic Bacteriology groups bacteria into species according to […]

Q.66 Which ONE of the following components is NOT an electron acceptor during anaerobic respiration?(A) Lactate (B) Carbonate (C) Nitrate (D) Sulphate Carbonate is NOT an electron acceptor during anaerobic respiration.​ […]

Q.65 Match the name of the disease with the causal organism. Disease Causal organism P. Black rot of sugarcane Q. Stem rot of jute R. Tikka disease of groundnut S. […]

Q.64 Which of the following statements are TRUE for respiration?P. The conversion of one molecule of pyruvate to three molecules of CO2 generates fourmolecules of NADHQ. Fructose 6-phospate is the principal […]

Q.63 Identify the CORRECT statements in plant secondary metabolism.P. Tropane alkaloids in Atropa belladonna are synthesized from tyrosineQ. Antioxidative food ingredient rosmarinic acid is obtained from cell suspension cultures ofColeus blumeiR. […]

Q.62 With respect to adhesion and cohesion of stamens, identify the INCORRECT statements.P. Adnation of stamens to petals is described as epiphyllous stamensQ. In Calotropis, stamens and carpels are united to […]

Q.61 Identify the free radicals (marked as ‘?’) in sequence from the inter-conversion of reactive oxygen species as shown below. O2 → ? → H2O2 → ? → H2O Given […]

Q.60 Which of the following statements are TRUE on transgene approach?P. T–DNA integration occurs mainly through non–homologous recombinationQ. The Gateway cloning depends on recombination technology as opposed to standard uses ofrestriction […]