nearly two trillion cells divide every day https://askabiologist.asu.edu/content/cell-division https://askabiologist.asu.edu/content/cell-division tens of millions 而每天約有2兆個細胞的「基因體」要全部複製一次 https://askabiologist.asu.edu/content/cell-division 30,000 to 40,000 https://askabiologist.asu.edu/content/cell-division https://askabiologist.asu.edu/content/cell-division tens of millions