Assertion: telomerase's role | /r/HasProperty | key
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Source sentences:
text: The discovery that telomerase has a key role in the immortalization of cancer cells by preventing telomere loss during cancer-cell division4 has sparked efforts to understand the chemical structure of this enzyme complex.
text: Telomerase, the only enzyme that can elongate a telomeric DNA chain, and telomeric repeat-containing RNA (TERRA), a long non-coding RNA involved in looping maintenance, play key roles in TL during life.