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.

Question: 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.

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 presence of the telomerase in bone marrow is no indication of bone marrow cancer.

Explanation:

The presence of the telomerase in the bone marrow is not the indication of the bone marrow cancer because as we know in the bone marrow cells they telomerase naturally. For the survival of the cancer cells presence of protein complex at the end of the chromosomes are ought to be necessary. These are maintained by an enzyme called as telomerase. So basically telomerase are the enzymes, present in the large numbers in majority of the tumors. These telomerase act as protectants from the chromosomes getting fusion and also from being recognized as sites of DNA damage.

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