Answers

2016-02-07T19:33:32+05:30
They are responsible for each and every activity of a person and sex chromosomes are responsible for the reproduction
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2016-02-07T19:35:24+05:30
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.chromosomes are made of protein and a single molecule of DNA. Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique...
i hope it helps...........
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