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15 September, 03:29

How many identical double strands of DNA will be present after three rounds of replication?

four

six

eight

nine

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Answers (1)
  1. 15 September, 03:49
    0
    Every time you replicate DNA you get 2 new DNA and 1 strand of each DNA is composed of the parent strand. So after 3 rounds of replication ...

    1 - - > 2 - - - > 4 - - - > 8

    Out of these 8, 2 of them contain the parent strands. So 2/8 = 1/4 = 25%

    Thus the answer is the third option, eight (8).
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