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The Hay-flick Limit is a concept that helps to explain the mechanisms behind cellular aging. The concept states that a normal human cell can only replicate and divide forty to sixty times before it cannot divide anymore, and will break down by programmed cell death or apoptosis.
Answer:
Thrombocytes. Thrombocytes (platelets) play an important role in hemostasis, by plugging and repairing damaged blood vessels, thus preventing blood loss. They also participate in a cascade of events that leads to blood clotting by triggering the release of a series of coagulation factors
Segments of DNA can be cut by using enzymes
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Answer: Desert mole excretes concentrated urine with urea. Marine fish excretes urine with uric acid. Tilapia excretes dilute urine with amino acids.
