In the mitotic cell cycle, chromosomal DNA is copied. The particular positions in DNA molecules at which copying is taking place are called replication forks. A typical human chromosome contains about 150 million base pairs of DNA. Replicating the DNA of a typical human chromosome takes about 1 hour. When only one replication fork is used, the replication rate is about 50 base pairs per second. Approximately how many replication forks are needed during DNA replication in a typical human chromosome?
- A835
- B41 000
- C50 00
- D3 000 00