hTERT is a subunit of this enzyme that functions as a reverse transcriptase complex in humans. For 10 points each:
[10m] Name this enzyme that adds TTA·GGG repeats to the 3’ (“three prime”) end of DNA, allowing cells to surpass the Hayflick limit.
ANSWER: telomerase
[10h] Elizabeth Blackburn and Carol Greider discovered telomerase in Tetrahymena, a genus in this phylum. Organisms in this phylum contain a “generative” micro·nucleus and a “vegetative” macro·nucleus.
ANSWER: Ciliophora [or ciliates]
[10e] Telomerase acts on telomeres, which are protective caps at the end of these structures. These structures are composed of histones and DNA and package genetic material inside the nucleus of a cell.
ANSWER: chromosomes
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