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Essay example - Aging and Fertility

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Masters
Essay
Biology
Pages 3 (753 words)
Aging is defined as “a progressive, time-dependent deterioration of an organism’s capacity to respond to environmental changes, which ultimately makes it susceptible to death” (Allen and Balin 4). It is a widely-accepted idea that aging is a natural process that occurs in…

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egulators that control enzymatic products called the polycomb group (PcG) control various gene loci that are essential to an organism, and one of these loci is the Ink4a locus, which contains genes responsible for senescence in organisms (Mishra and Mishra 135). Since the process of aging most likely would be affecting an organism’s overall body functions, it would also greatly affect its capacity to reproduce, eventually leading to a decrease or the loss of fertility of the said organism (Liu and Case 1169). At present, there are numerous links between chromosomal and DNA damage not just to the aging process of an organism but also on fertility.
A female’s capacity to conceive and give birth, or a male’s capability to contribute in conceiving a child is called fertility (Masoro 161). In order to proliferate the species well into numerous and succeeding generations, organisms must be able to produce as much offspring as possible that are able to adapt to the current environment that they live on. For that to happen, the process called natural selection takes place (Torday and Rehan 12). Also, the energy that flows within the organism is appropriated in such a way that during the process of reproduction, most of the energy from the consumption of food is distributed to the body’s reproductive systems, mostly to the rapidly-dividing cells called the gametes. However, once the organism starts the process of aging, the energy being exerted for reproduction is reduced and more focus is given to the maintenance of the organism’s body, especially when there is the presence of a rapid breakdown of cells as well as the decline of cell-to-cell communication within the systems and organs (13).
Not only is the production of cells affected by aging, but also the process of DNA replication and repair as well. Due to the proliferation of damaged DNA especially in the sex cells of the organism, it would eventually contribute to the creation of deformed or dysfunctional ...
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