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If Ecoli allowed to grow for 80 min ,what would be the proportions of light and hybrid densities DNA molecule?

Posted by Cap Jack Sparrow 2 years, 11 months ago

CBSE > Class 12 > Biology

2 answers

Sia ? 2 years, 11 months ago

So, after 80 minutes there will be 4 generations. In the first generation all the strands will be hybrid (as the heavy isotope will be incorporated in the newly synthesised strand of DNA) i.e the two DNA will be of intermediate nature. In the second generation, 50% the DNA will be light and 50% will be hybrid.

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Nidhi Bharti 2 years, 11 months ago

In 80 min, DNA will replicate 4 times. so, 16 dna copies will be formed out of which, 2 are hybrid i.e. 12.5% is Hybrid DNA and 14 dna copies are light dna so 87.5% is light DNA

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