Question

Why Should DNA Molecules Of Eukaryotic Chromosomes Be Rapidly Copied?

Answer 1

DNA molecules of eukaryotic chromosomes :

1. The large DNA molecules of eukaryotic chromosomes need to be copied rapidly to make sure that replication is completed in a comparatively short period of time.
2. The DNA synthetic mechanism duplicates DNA at a very fast rate of about 5–100 nucleotides per second, varying with the amount of protein packaging present.
3. Along with it, eukaryotic chromosomes contain a great number of replication origins, allowing many areas in the same chromosome to be replicated simultaneously.
4. Replication forks moving out from one place of origin combine with forks from nearby origins or move to the end of a chromosome up to the time the entire chromosome is replicated.