61. The string of nucleosomes is coiled into a 300A diameter structure, called
62. Which of the following is the correct sequence of phases in cell cycle?
63. Consider the following statements regarding cell cycle and choose the correct answer:
1. During G1 phase the cell grows in size and there is an active synthesis of RNA and proteins
2. The third stage of the cell cycle is termed G2 phase
3. In the mitotic phase, the DNA molecule of each chromosome replicates by the synthesis of a new DNA molecule on the template of the existing DNA
1. During G1 phase the cell grows in size and there is an active synthesis of RNA and proteins
2. The third stage of the cell cycle is termed G2 phase
3. In the mitotic phase, the DNA molecule of each chromosome replicates by the synthesis of a new DNA molecule on the template of the existing DNA
64. In a living cell, what is the site of ribosome formation?
65. The cisternae on the forming face of the Golgi complex are constantly being formed by fusion of vesicles derived from the
66. Hormone-receptor binding in the cell membrane results in the activation of which of the following enzymes?
67. The particles associated with the inner membrane of mitochondria, called elementary particles, consist of
68. In many cells the protein released from the endoplasmic reticulum is combined with carbohydrate to produce complex carbohydrates like glycoproteins, mucopoly-saccharides, glycogen and glycolipids. This process is called
69. Which of the following is membrane less cell organelle?
70. Study the following statements.
1. The term 'Cell' was first coined by Robert Hooke.
2. Plant cells are generally without lysosomes.
3. Cell wall present only in animals cells.
Which of the statement(s) given above is/are true?
1. The term 'Cell' was first coined by Robert Hooke.
2. Plant cells are generally without lysosomes.
3. Cell wall present only in animals cells.
Which of the statement(s) given above is/are true?
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