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Q.9 During DNA repair, which of the following enzymes is involved in phosphodiester bond formation ? 1. DNA polymerase 2. DNA ligase 3. Phosphodiesterase 4. Primase DNA Ligase Seals Phosphodiester […]

Q.8 Which of the following cellular organelle is involved in Tay-Sachs disease (TSD)? 1. Golgi 2. Lysosomes 3. Endoplasmic reticulum 4. Mitochondria Tay-Sachs Disease Organelle: Lysosomes Explained for Biology Exams […]

Q.7 Which of the following motor proteins is involved in intracellular transport along microtubules? 1. Myosin 2. Kinesin 3. Dynein 4. Both Myosin and Dynein Which Motor Protein Transports Cargo […]

Q.6 Insulin-dependent glucose uptake by adipose tissue is the result of 1. cotransport of glucose with sodium against concentration gradient 2. simple diffusion of glucose down the concentration gradient 3. […]

Q.5 Non-active protein part of an enzyme that requires cofactor for activation is 1. apoenzyme 2. holoenzyme 3. coenzyme 4. ribozyme The correct answer to the query is 1. apoenzyme, as […]

Q.4 What is the net charge of glutamate at pH 7? 1.+1 2.0 3.+2 4 .- 1 Glutamate carries a net charge of -1 at pH 7 due to its […]

Q.3 Which of the following antibodies can cross the placenta? 1. IgA 2. IgG 3. IgM 4. IgE Which Antibody Crosses the Placenta? IgA, IgG, IgM, or IgE Explained Only […]

Q.2 Which of the following is an amino acid? 1. Tryptophan 2. Proline 3. Lysine 4. Phenylalanine Which of the Following is an Amino Acid? Tryptophan, Proline, Lysine, Phenylalanine Explained […]

Q.1 Which of the following statement is true about nucleoside? 1. Nitrogenous base attached to OH of C-1′ of pentose sugar 2. Phosphoryl group attached to C-5′ of pentose sugar […]

Q.62 What is true about bacterial DNA-dependent RNA Polymerase. A. It is an oligomer of approximately 400KDa. B. Its beta(ß) subunit together with Mg2T converts ribonucleotides into RNA. C. a-amanitin […]