7. The increased levels of telomerase associated with many tumor cells likely promote cancer by: A) enhancing levels of DNA repair so that cells remain normal and have stable genomes and thus would be able to replicate their DNA and divide more often. B) promoting the efficiency of the spindle-assembly checkpoint. C) reducing the expression of several oncogenes. D) decreasing the number of epigenetic changes that would promote cancer. E) allowing cells to continue to divide when nor

The increased levels of telomerase associated with many tumor cells likely promote cancer by E) allowing cells to continue to divide when normally chromosomes should shorten beyond a point where division would be no longer possible

Explanation:

Telomerase is an enzyme that enables cells to stay its genome and be healthy. Increased levels of telomerase allow cells to have more divisions and more mutations, having as a result incomplete information for cells, becoming them cancer cells. When it is possible to inhibit this enzyme, telomers get shorter and cancer cells might die.

Completed option E

allowing cells to continue to divide when normally chromosomes should shorten beyond a point where division would be no longer possible

E

Explanation:

Telemerase  is a reverse transcriptase enzymes that maintains the length of telemoeres. The later is a repetitive nucleotide sequence of a chromosomes that  stabilizes  the end of the chromosomes from deteriorating and possible fusion with adjacent chromosomes.  its length decreases with each cell division, but replenished by enzymes telemerase.

Telomeres undergo  division to protect the removal  of the  gene portion  located ahead of them on the chromosomes.They are protected by protein Shelterin,

In  Cancer cells, telemere length is increased thus cells undergo prolong cell division which leads to multiple cells production.  Therefore if  telomerase concentration is increased, the telomeres will be replenished after each cell division, by this enzyme. its length will increase, and consequently more tumor cells will be produced.

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explanation:

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