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Q.5 Which one of the following pairs of antibodies contains ‘J–chain’ in their multimericform?(A) IgA and IgE(B) IgA and IgM(C) IgD and IgE(D) IgD and IgG J-Chain in Multimeric Antibodies: […]

Q.4 A growing shoot of a germinating seedling encounters an underground obstacle.Which one of the following hormones elicits ‘triple response’ to the undergroundobstacle?(A) Auxin(B) Cytokinin(C) Ethylene(D) Gibberellins Ethylene elicits the […]

Q.3 Which one of the following is NOT a plant vascular tissue?(A) Phloem(B) Periderm(C) Stele(D) Xylem Answer: (B) Periderm Plant vascular tissues primarily consist of xylem and phloem, which conduct […]

Q.2 Arrange the following elements in increasing order of their electronegativityaccording to the Pauling scaleC, Na, Be and Br(A) Be, Na, C, Br(B) Br, C, Na, Be(C) Na, Be, C, […]

Q.1 Which one of the following compounds inhibits the polymerization of tubulin tomicrotubules in animal cells?(A) ATP(B) Taxol(C) Thymosin(D) Vinblastine Vinblastine inhibits tubulin polymerization to microtubules in animal cells. This compound, […]

Q.60 The restriction map of a circular plasmid is shown below, along with theindicated distances between the restriction sites. The plasmid was completely digested with EcoRI, and XhoI. The products […]

Q.59 If a fair coin is tossed two times, the probability that the first or the second tosswill be heads is __________ (rounded off to two decimal places). When a […]

Q.58 A population of 1000 plants are in Hardy–Weinberg equilibrium. Two alleles Rand r determine a particular trait in this population. If the number of plants withRR genotype is 640, […]

Q.57 The value of lim 𝑥2−9/𝑥2−4𝑥+3 is __________(rounded off to the nearest integer). x–>3 The limit as x approaches 3 of (x² − 9)/(x² − 4x + 3) is a […]

Q.56 Consider an enzyme that follows simple Michaelis–Menten kinetics, and has a𝐾𝑀 of 5 μ𝑀. The initial velocity of the reaction will be 10% of the maximumvelocity at a substrate […]