No posts found.
19. Which of the following cell types is infected by the human immunodeficiency virus-1? (A) T-helper lymphocytes (B) T-cytotoxic lymphocytes (C) Plasma cells (D) B-lymphocytes HIV-1 Primarily Infects T-Helper Lymphocytes Introduction The Human Immunodeficiency Virus type 1 (HIV-1) is a retrovirus that attacks the human immune system and causes Acquired Immunodeficiency Syndrome (AIDS). HIV infection […]
Q47.Match List I with List II List-I (Name of Scientists)A. Avery, Macleod and McCartyB. Edward JennerC. Erwin ChargaffD. Seymour Benzer List-II (Discoveries)I. Complementation analysisII. Law of equivalence of basesIII. Chemical basis of heredityIV. Vaccine Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-II, B-I, C-IV, D-III(C) A-IV, B-III, C-II, […]
Q46.Match List I with List II List-I (Cell type)A. MacrophagesB. B-cellsC. Cytotoxic T-cellsD. Helper T-cells List-II (Function)I. Antibody productionII. PhagocytosisIII. Interact with macrophages and secrete cytokinesIV. Interact with infected host cells Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-II, B-I, C-IV, D-III(C) A-III, B-IV, C-II, D-I(D) A-II, B-III, […]
Q45.Match List I with List II List-I (Compound)A. DolicholB. Vitamin-KC. Vitamin-ED. Warfarin List-II (Function)I. Blood clotting factorII. AntioxidantIII. AnticoagulantIV. Sugar carrier Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-III, B-I, C-IV, D-II(C) A-III, B-IV, C-II, D-I(D) A-II, B-III, C-IV, D-I The correct answer is option (A): A-IV, B-I, […]
Q44.Match List I with List II List-I (Nitrogenous bases)A. CytosineB. 5-methyl-cytosineC. AdenineD. Guanine List-II (Deaminated product)I. ThymineII. XanthineIII. UracilIV. Hypoxanthine Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-III, B-I, C-IV, D-II(C) A-III, B-IV, C-II, D-I(D) A-II, B-III, C-IV, D-I The correct answer is option (B): A-III, B-I, C-IV, […]
Q43.Match List I with List II List-I (Hormone)A. Epinephrine in liverB. FSHC. VasopressinD. Epinephrine in skeletal muscle List-II (Function)I. Conversion of glycogen to glucose-1 phosphateII. Increased conversion of glycogen to glucoseIII. Increase synthesis of estrogenIV. Reabsorption of water Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-IV, B-I, C-III, […]
Q42.Match List I with List II List-I (Animal)A. AnnelidsB. InsectsC. MolluscesD. Cyclostomes List-II (Larva)I. VeligerII. TrochophoreIII. AmmocoetesIV. Catterpillar Choose the correct answer from the options given below: (A) A-I, B-II, C-III, D-IV(B) A-II, B-III, C-IV, D-I(C) A-II, B-IV, C-I, D-III(D) A-III, B-II, C-I, D-IV The correct answer is option (C): A-II, B-IV, C-I, D-III. This matches […]
Q41.Match List I with List II List-I (Enzymes)A. Histone acetyl transferaseB. Cyclin dependent kinaseC. α-antitrypsinD. Topoisomerase List-II (Function)I. DNA replicationII. Chromatin remodelingIII. Cell cycle regulationIV. Emphysema Choose the correct answer from the options given below: (A) A-IV, B-I, C-II, D-III(B) A-IV, B-I, C-III, D-II(C) A-II, B-III, C-IV, D-I(D) A-III, B-IV, C-II, D-I The correct answer […]
Q49.Given below are two statements: Statement I: In prokaryotes all types of RNAs are transcribed by the holoenzyme, that consists of several polypeptides (Two α, One β, & One β′ and one σ). Statement II: The start signals on DNA are called promoters and represent the initial binding site for the RNA polymerase. In the […]
Q40.Trypan blue assay is used for the: (A) Counting of animal cells(B) Quantification cellular proteins(C) Quantification of nucleic acid(D) Identification of metabolite Trypan blue assay is used for counting animal cells, specifically to assess viability by distinguishing live from dead cells. This dye exclusion method relies on intact cell membranes of viable cells repelling the […]
