A shotgun genome sequencing project is designed in which the average length of a sequenced fragment is 100 nucleotides and each nucleotide is to be sequenced an average of 30 times. For the human genome, which is 3 × 109 base pairs long, how many fragments of 100 nucleotides would need to be sequenced?
A)(3 × 109)× 30 × 100 = 9 × 1011
B)(3 × 109)× 30 ÷ 100 = 9 × 108
C)(3 × 109)× 100 ÷ 30 = 1 × 1010
D)(3 × 109)÷ (30 × 100)= 1 × 106