Respuesta :
Answer:
5000 number of origins
Explanation:
Drosophila genome contains = [tex]1.8 * 10^{8}[/tex] base pairs
Eukaryotic DNA polymerases synthesize = 60 nucleotides per second.
Note:DNA replication in people is bi directional.
Thus, by changing over the human DNA replication rate to the pace of drosophila replication, we get
Whereas, in 5 minutes we have 300 sec,
60 nucleotides
and
2 is bidirctional
300 sec × 60 × 2,
is equal to 36000/sec
Presently to show up at the quantity of sources of replication that is required for this pace of replication in drosophil, we need to separate as follows
rate of replication in drosophila/ rate of replication in human
= ([tex]1.8 * 10^{8}[/tex]) / 36000
= [tex]5 * 10^{3}[/tex]
= 5000 number of origins
Answer:
20000 origins of replication are required for the rate of replication.
Explanation:
The Drosophila genome size is 1.8x10⁸bp, then every strand has 1.8x10⁸nucleotides.
If the DNA polymerases synthesize DNA at a rate of 60 nucleotides. In one strand will be 30 nucleotides, thus, in 5 minutes:
5*60*30 = 9000
Then, the number of origins of replication is:
[tex]OR=\frac{1.8x10^{8} }{9000} =20000[/tex]
