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What would be the molar concentration of human DNA in a human cell? - Biology

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प्रश्न

What would be the molar concentration of human DNA in a human cell?

संख्यात्मक
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उत्तर

Molar concentration is the number of moles of solute in a solution divided by its volume, given in litres.

The average weight of a DNA base pair = 650 daltons (1 dalton equals the mass of a single hydrogen atom or 1.67 × 10−24 grams)

The molecular weight of a double-stranded DNA molecule = Total no. of base pairs × 650 daltons.

The human genome is 3.3 × 109 base pairs in length.

Hence, the weight of the human genome

= 3.3 × 109 base pair × 650 Daltons

= 3.59 × 1012 gm

The molar concentration of DNA can be calculated accordingly.

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