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Q.8 Consider two nuclei with the same mass number A. For which of the following values of A, the fusion reaction is NOT possible? (A) 15 (B) 22 (C) 29 […]

Q.7 From the set of 10 numbers {1, 2,…,10} three numbers are selected at random without replacement. The probability that the sum of these selected numbers is 9, is (A) […]

Q.6 In ecotone, some species become abundant and they are called (A) sibling species (B) endemic species (C) rare species (D) edge species The correct answer is (D) edge species. […]

Q.5 Radial symmetry is the characteristic feature of which of the following phyla? (A) Arthropoda (B) Mollusca (C) Cnidaria (D) Chordata Cnidaria exhibits radial symmetry among the given options. Radial […]

Q.4 The circulatory levels of estrogen is derived mainly from (A) thecal and granulosa cells (B) gonadotrophs (C) endometrial epithelia (D) Leydig cells The main source of circulating estrogen levels […]

Q.3 Eukaryotic cell containing flagella is (A) cell lining the fallopian tube (B) sperm (C) Paramecium (D) cell lining the respiratory tract Eukaryotic cells use flagella as long, whip-like structures […]

Q.2 During mitosis, disappearance of the nucleolus is a hallmark of (A) metaphase (B) prophase (C) anaphase (D) telophase Disappearance of the nucleolus marks prophase as a hallmark event in […]

Q.1 Pure IgG antibody was run on an SDS-PAGE under reducing condition. How many bands would you see after staining with Coomassie blue? (A) 4 (B) 2 (C) 1 (D) […]

Q.60 A first order reaction is 87.5% complete at the end of 30 minutes. The half-life of thereaction is __________ minute(s).   The half-life of the first-order reaction is 10 […]

Q.59 The number of axial C-H bond(s) in the major product (P) of the given reaction is________. The major product is a tertiary alcohol in which the tert‑butyl group is […]