Telomerase is an enzyme that is produced only in cells that are actively dividing. For this reason it is generally absent from body tissues in adults. Bone marrow is an exception to this rule, however, since even in adults, bone marrow cells continually divide to replace old blood cells. Cancers are another exception, because their cells are rapidly dividing.
The information provided most strongly supports which of the following?
A. Telomerase is the only enzyme that is present in cancerous cells but absent from cells that are not actively dividing.
B. In children, the only body tissues from which telomerase is absent are those in which cells are not rapidly dividing.
C. The presence of telomerase in bone marrow is no indication of bone marrow cancer.
D. Cancer of the bone marrow develops more rapidly than cancer growing in any other kind of adult tissue.
E. The level of telomerase production is always higher in cancerous tissue than in noncancerous tissue.
答案是c,有點看不太懂題目,先說一下我的認知
T會快速分裂,但因為此因並不會出現在成人細胞中,BM和cancer地細胞雖然也會快速分裂,但卻會出現在成人細胞中??
我選e,因為題目有提到在cancer地細胞中會快速分裂,有人可以告訴我錯在哪邊嗎?謝謝