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Paternal Sperm Telomere Elongation and Its Impact on Offspring Fitness
Telomeres are structures at the ends of DNA strands that get longer in the DNA of sperm cells as males age. That phenomenon is different for most other types of cells, for which telomeres get shorter as organisms age. In ...
Telomerase in Human Development
(Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2015-03-23)
Telomerase is an enzyme that regulates the lengths of telomeres in the cells of many organisms, and in humans it begins to function int the early stages of embryonic development. Telomeres are repetitive sequences of DNA ...
The Hayflick Limit
(Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2014-11-14)
The Hayflick 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, ...