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Q.31 Which of the following technique is used to inactivate a gene by altering the DNA 1. Homologous recombination 2. Antisense nucleic acid block 3. Antibody microinjection 4. Introduction of […]

Q.30 Agrobacterium rhizogenes is used to genetically engineer the plant because of the following statement 1. It contains a Ti plamid 2. It causes gene transfer to plants 3. It […]

Q.29 Match List I with List II List I (Terms) List II (Example) A. Halophile B. Acidophile C. Thermophile D. Microaerophile I. Thermus aquaticus II. Treponema III. Halobacterium IV. Sulfolobus […]

Q.28 What are the basic properties of Gram positive (+ve) bacteria (A). Thick peptidoglycan layer is present (B). Teichoic acids are present (C). Periplasmic space is negligible (D). Outer membrane […]

Q.27 N-acetylglucosamine (NAG) and N- acetylmuramic acid (NAM) in cell wall of bacteria are connected by: 1. ß-1,4 glycosidic bond 2. ß-1,2 glycosidic bond 3. ß-1,3 glycosidic bond 4. ß-2,4 […]

Q.26 Which types of protein is commonly found in RBC? 1. Glyoprotein 2. Spectrin 3. Ankyrin 4. Spectrin and Ankyrin Spectrin and ankyrin are key cytoskeletal proteins commonly found in […]

Q.25 Myoglobin is a globular protein, which is made up of 1. 159 2.153 3.160 4.170 Myoglobin Amino Acids: Correct Count Revealed (MCQ Answer) Myoglobin, a key oxygen-storage protein in […]

Q.24 Which of the following is correct statement about ATP A. It contains two phosphodiester bond B. It has one phosphate ester bond C. It contains ribose sugar D. It […]

Q.23 Match List I with List II List I (Chemical nature of side chain) List II (Amino Acid) A. Aliphatic amino acid B. Sulphur containing C. Imino D. Amide I. […]

Q.22 The ideal value for the backbone dihedral angles for antiparallel β-sheets are: (A) φ = −120° and ψ = +125° (B) φ = −139° and ψ = +135° (C) […]