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Almost 50% of the human DNA consists of repeated sequences. Estimate how long would be the...

Almost 50% of the human DNA consists of repeated sequences. Estimate how long would be the DNA double helix that could be made by putting all of these sequences one after another for the DNA that you have in one of your cells. How long would this DNA double helix be if you are now putting together this repeated sequences together for all of humankind (only the DNA from one cell per human though)?

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Answer:- Human DNA is about 1.02 meter long without streching (double helix), so 50% of it is 0.51 meter. there are 7.8 billion human present on earth now so 0.51 meter x 7.8 billion = 3 billion 978 million meter(3978000000 metre) long DNA double helix .

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