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Q. Mesosomes of prokaryotes are functionally similar to : (a). Peroxisomes (b). Lysosomes (c). Mitochondria (d). Ribosomes

Q. Centrosome is absent in ? (a). Cells of higher plants (b). Cells of lower plants (c). Cells of higher animals (d). Cells of lower animals

Q. Number of protofilaments in a microtubule is ? (a). 15 (b). 13 (c). 10 (d). 5

Q. Enzyme catalysing ATP inside flagella is ? (a). Axonic dynein (b). Cytoplasmic dynein (c). Myosin (d). Kinesis