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Q.51. Among the following, which best describes an organism that lives at the expense of other organisms, harmful but usually not killing? (A) Predator (B) Symbiotic (C) Prey (D) Parasite […]

Q.50. In a typical green plant, the first stable product of Calvin cycle is (A) Oxaloacetic acid (B) Succinic acid (C) Maleic acid (D) 3-Phosphoglyceric acid Here’s a SEO-friendly article […]

Q.49. 2-Methoxy-3, 6-dichlorobenzoic acid belongs to which class of plant growth regulators? (A) Synthetic auxin (B) Synthetic cytokinin (C) Strigolactone (D) Brassinosteroid 2-Methoxy-3,6-dichlorobenzoic acid, commonly known as Dicamba, functions as […]

Q.48. In a typical angiosperm under natural condition, primary meristems are usually established during (A) Gametogenesis (B) Embryogenesis (C) Vegetative phase development (D) Secondary growth Primary meristems in typical angiosperms […]

Q.47. In natural condition, which of the following plants DOES NOT exhibit anomalous secondary growth? (A) Rice (B) Aloe (C) Yucca (D) Dracaena The correct answer is (A) Rice. Most monocots […]

Q.46. Indefinite stamen is a characteristic feature of which of the following plant families? (A) Malvaceae (B) Apocynaceae (C) Poaceae (D) Brassicaceae Indefinite stamens, numerous and not fixed in number, […]

Q.45. The enzyme glucose isomerase catalyzes the inter-conversion of glucose and fructose as shown. Glucose ⇄ Fructose The 𝚫𝐆𝟎′ for this reaction is zero 𝐤𝐜𝐚𝐥/𝐦𝐨𝐥. After adding glucose isomerase to […]

Q.44. An enzyme obeying Michaelis-Menten kinetics shows a reaction velocity (v) of 𝟏𝟎𝝁 𝐦𝐨𝐥/𝐦𝐢𝐧 when the substrate concentration [𝐒] equals its 𝐊𝐌. The maximal velocity 𝐕max for this enzyme is […]

Q.43. A PCR in a 𝟏𝟎𝟎𝝁 𝐋 reaction volume, containing two primers at a concentration of 𝟎. 𝟐𝝁𝐌 each, is set up to amplify a 250 base pair DNA fragment. […]

Q.42. The second pKa of phosphoric acid is 6.8. The ratio of 𝐍𝐚𝟐𝐇𝐏𝐎𝟒 to 𝐍𝐚𝐇𝟐𝐏𝐎𝟒 required to obtain a buffer of pH 7.0 is ____ (rounded off to two decimal […]