in a segment of dna total 6.4 kilo base pairs are present if number of adenine molecule is 2000 then what will be the number of cytosine in the dna?
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Explanation:
The pairing in DNA occurs as A-T and C-G. So, the number of adenine equals to thymines while the cytosines equal to guanosine.
There are 3.2 kilobases (3,200 kb), and it has 820 adenine and so are the number of thymines. So, 1640 bases are As and Ts. So, remaining bases are 3200-1640 = 1560.
So, 1560 includes Cs and Gs. So, the number of cytosines are (1560/2 = 780).
So, the correct answer is option C.
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