Dual-inheritance theory posits that human behavior is the result of two different processes that develop independently, but interact with each other: biological and cultural evolution. how is this a reflection of the nature-nurture debate?

In 1994, telomerase activity was discovered in human cancer cell lines. although telomerase activity is rarely present in human somatic tissue, this discovery indicated that humans do contain the genes for telomerase proteins and telomerase rna. since inappropriate activation of telomerase may contribute to cancer, why do you think the genes coding for this enzyme have been maintained in the human genome throughout evolution?