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Q.52 Phylogenetic system of classification is/are proposed by(A) Carolus Linnaeus(B) John Hutchinson(C) Engler and Prantl(D) Bentham and Hooker The correct answer is (C) Engler and Prantl, because they proposed a […]

Q.51 Which of the following plant diseases is/are caused by bacteria?(A) Angular leaf spot of cotton(B) Citrus canker(C) Apple scab(D) Leaf curl of papaya Angular Leaf Spot of Cotton, Citrus […]

Q.50 Anomalous secondary growth is observed in(A) Triticum(B) Oryza(C) Zea(D) Dracaena Anomalous secondary growth occurs in Dracaena (D).​​ Option Analysis Triticum (wheat): This monocot lacks vascular cambium, showing only primary growth […]

Q49 With reference to virulence (vir) genes of wild type Agrobacterium tumefaciens (match Group-I (vir gene) and Group-II (encoded protein) in CORRECT combination. P virA Q virB R virD S […]

Q.48 ‘Quiescent Center’ is present in(A) leaf meristem(B) root apical meristem(C) shoot apical meristem(D) floral meristem The Quiescent Center is present in the root apical meristem. This region consists of slow-dividing […]

Q.47 In Angiosperms, normally ‘Exarch Xylem’ occurs in(A) dicot stem(B) monocot stem(C) dicot root(D) dicot leaf Exarch xylem in angiosperms roots, specifically dicot roots, features protoxylem positioned towards the periphery […]

Q.46 A forty-times diluted sample of ssRNA gave an 𝐴260 of 0.01 . The concentrationof the ssRNA before the dilution in μ𝑔/𝑚𝐿 was _____ (correct to the nearestinteger). The concentration […]

Q.45 The half-maximal velocity of an enzyme catalyzed reaction was found at asubstrate concentration of 0.5 × 10-6 𝑀. This enzyme follows Michaelis-Mentenkinetics. In the presence of a competitive inhibitor, […]

Q.44 The dissociation constant for a receptor-ligand pair is 0.25 × 10-7𝑀 . The ligandwas added to a solution of the receptor such that the receptor was 50% saturatedat equilibrium. […]

Q43 The standard free energy changes for conversion of phosphoenol pyruvate (PEP) to pyruvate, ATP synthesis are shown below. PEP + H₂O ⇌ pyruvate + Pᵢ          […]