Question

The number of glycosidic bonds associated with the DNA of haploid human cells are

• A. $6.6\times {10}^9$
• B. $2\times 6.6\times {10}^9$
• C. $3.3\times {10}^9$
• D. $9.9\times {10}^9$

Answer 1

The correct option is A $6.6\times {10}^9$

It is known that diploid cells of humans contain $6.6\times {10}^9$ base pairs in its DNA. Further, each base pair contains 2 glycosidic bonds. Thus, in haploid cells, $3.3\times {10}^9$ base pairs are present.
So total number of glycosidic bonds in haploid human cell DNA is $2\times 3.3\times {10}^9=6.6\times {10}^9$.