The correct answer is A. Apoptosis is regulated cell death/suicide, not accidental.
They are the skeletal muscle tissues
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HeLa cells, like many tumours, have error-filled genomes, with one or more copies of many chromosomes: a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.
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because every year there is a new strain of flu
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A. I think A is the answer.
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