NEET Biology: Questions 73 - 79 of 3146
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Question number: 73
When a neuron is stimulated to generate nerve impulse, the electrical potential on the inside of the nerve membrane changes
From positive to negative and remains negative
From negative to positive and back to negative.
From positive to negative and back positive.
From negative to positive and remains positive.
Question number: 74
Question number: 75
Question number: 76
Question number: 77
Question number: 78
Question number: 79
Are used in genetic engineering for ligating two DNA molecules.
Are used for in vitro DNA synthesis.
Are synthesized by bacteria as a part of defense mechanism.
Are present in mammalian cells for degradation of DNA when the cell dies