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Telomeres are the ends of chromosomes. They consist of repetitive sequences that vary in length between species and individuals. With each cell division, telomeres shorten due to oxidative stress and the inability of DNA polymerase to fully replicate them (end replication problem). Several means to lengthen telomeres have been observed; in humans, two methods exist: the telomerase enzyme and the recombination-based alternative lengthening of telomeres (ALT). Telomeres play a significant role in cancer development and stem cell aging.
90% of cancers activate telomerase as a telomere maintenance mechanism.
by tempest33 March 16, 2009
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
via giphy
by ecogoth December 30, 2020
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