Question

Presence of the enzyme________ indicates that a cell is cancerous as it keeps telomeres at a constant length.

1. Telomerase
2. DNA Polymerase
3. RNA Helicase
4. Ligase

Answer 1

The presence of telomerase indicates that a cell is cancerous, as it keeps telomeres at a constant length, allowing the cells to replicate indefinitely.

Step-by-step explanation:

The presence of the enzyme telomerase indicates that a cell is cancerous, as it keeps telomeres at a constant length. Telomeres are the protective caps at the ends of chromosomes, and they shorten with each cell division. In normal cells, telomerase is not active and telomeres gradually shorten, contributing to the aging process. However, in cancer cells, telomerase becomes active and prevents telomeres from becoming too short, allowing the cells to replicate indefinitely.