• Research Paper on:
    Heredity v. Hormones

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    A 3 page research paper that discusses this topic. Bibliography lists 5 sources.

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    timing chain for the finely tuned biological engine that is the human body, as the endocrine system if responsible maintaining homeostasis in the body. As this suggests, the endocrine system  operates according to a negative feedback system where in "once the action of the hormone is complete, the target tissue response will ensure that the release of the hormone is  decreased and vice versa" (Watson, 2000). Additionally, hormones exert "a powerful influence" over many aspects of human behavior that relate to energy levels, memory and aging, as hormones regulate such  developmental milestones as "puberty, fertility, pregnancy and menopause" (Berkson, 2002). The endocrine system is essentially the bodys messenger service, sending and receiving messages that regulate body functioning. Like all other  aspects of body structure, how well a persons endocrine system functions is dependent largely on their personal heredity. Around 1900, three scientists rediscovered the experiments that Gregor Mendel performed  in the early nineteenth century and launched the science of genetics, which led to Wilhelm Johannsen coining the word "gene" to define the "fundamental unit of heredity controlling the transmission  of a single character in Mendelian genetics (Ricard, 2005, p. 197). Science has determined that genes are made up of segments of deoxyribonucleic acid (DNA), which directly encode sequences of  aminoacid proteins, each of which pertain to a specific building block of the body (Ricard, 2005). It has been thought that the human genome, i.e., all of these gene sequences,  constitute the "book of life," but the Human Genome Project has found that "sequence information alone cannot adequately explain biologic function" (Richard, 2005, p. 197). Evolutionary biologists tend to  study and base their theories on non-human organisms which contrasts with evolutionary psychologists who endeavor to explain human behavior in terms of evolutionary history (Larson, 2006). Their professional organization, the 

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