Biology 1001A Lecture Notes - Helicase, Mitosis, Tubulin
4 Sep 2013
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Dna polymerase cannot initiate replication it can only continue something that has started (extend 3" end of properly paired base) One replisome replicates both strands at once. Leading strand polymerase is where leading strand is sent. Replication starts in the middle and among various spots however one will be at the end, where telomerase comes into play. Telomerase issue occurs on both ends of a chromosome. Epidermis, gut lining (tissue that needs to be renewed) During early development liver if it"s growing repair of injury leaves chutes (any growing tip) Most are not however there are many choices: dividing, not dividing, transport systems (xylem & phloem) trunk dying, etc. Hair and nails are not cells but they are produced by cells. Xylem pipes in plants = purpose to die and become pipe. May be a normal fate for a cell to die by apoptosis.
