41. The DNA molecules identified within mitochondria are
42. The enzymes of Krebs' cycle are present in the mitochondrial
43. Consider the following statements regarding microtubules and choose the correct answer:
1. The wall of a microtubule is made of 13 longitudinal filaments, each a polymer chain of tubulin
2. Microtubules help in the maintenance of cell form, cell mobility and movement of chromosomes
3. Microtubules occur only in bundles in the cytoplasm
1. The wall of a microtubule is made of 13 longitudinal filaments, each a polymer chain of tubulin
2. Microtubules help in the maintenance of cell form, cell mobility and movement of chromosomes
3. Microtubules occur only in bundles in the cytoplasm
44. Which one of the following cell organelles does not possess nucleic acid?
45. Which one of the following is also called the 'power plants' of the cell?
46. Mammoth is the ancestor of
47. Nuclear membranes appear to have electron transport systems similar to those of the
48. The Golgi bodies very common in the secretory cells are originated from
49. According to recent proof, the life on earth emerged approximately
50. Which one among the following statements is correct?
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