Answer:
a) [tex]200000[/tex] minutes
b) [tex]20000[/tex] number of replicons
Explanation:
Given,
Total number of base pairs in a particular eukaryote [tex]= 5* 10^8[/tex]
Rate of DNA synthesis [tex]= 2500[/tex] bp/min
a) Time taken to replicate the entire chromosome from a single origin of replication located exactly in the middle of the chromosome is equal to total number of base pairs divided by rate of DNA synthesis
[tex]= \frac{5* 10^8}{2500}\\= 200000 minutes\\[/tex]
b) Time taken by an actively growing cell to replicate the entire chromosome[tex]=10 minutes[/tex]
The minimum number of replicons present in this chromosome is equal to total time taken for replication divided by time taken by each replicon
[tex]= \frac{200000}{10} \\= 20000[/tex]
