If the DNA of humans contains `3 xx 10^(9) bp`, and if an Okazaki fragment, on average, is 2000 bp long, how many initiation points of RNA primase are present in the genome ?

Options

A. `1.5xx10^(6)`
B. `3.5 xx 10^(6)`
C. `1.5xx10^(9)`
D. `1.0 xx 10^(6)`

Answer

A

Explanation

Divide the total number of base pairs by the size of the Okazaki fragment or `(3 xx 10^(9))//(2xx10^(3))=1.5xx10^(6))` initiation sites.