Medical Science

Among the diagnostic techniques discovered in the last century, one of the most useful and safest technology is the MRI scan. MRI stands for magnetic resonance imaging and as the name suggest, it uses high powered magnetic fields and certain…
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Students often become confused during discussions of genetics when it comes to the terminology associated with chromosomes and chromosome number. What are homologous chromosomes? What are duplicated chromosomes? What are chromatids? How do all of these terms differ and how…
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Experience shows that people with fair complexions (low levels of melanin) are more prone to sunburn. New research now reveals that certain variations in the genes that control the color of our skin, hair and eyes are associated with an…
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Boundaries exist between humans and animals in regards to medical testing, housing, ownership, euthanasia, purchased breeding, and a number of other areas, so why would it be different for cloning? A slippery slope would indicate that one could easily go…
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Clopidogrel is the generic name for an anti-platelet drug used to prevent heart attack and stroke. It is sold under the brand name Plavix. In order for the drug to work, it must be metabolized in the body. Metabolic enzymes…
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Breaks in the DNA strand due to exposure to damaging agents can occur across one (single strand break, SSB) or both strands (double strand break, DSB). Types of environmental damage that can induce chromosomal damage of this type include ionizing…
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The morning fix may be just what the doctor ordered, at least according to the findings of a new study. A study by a group of international researchers at the Duke University School of Medicine in North Carolina found that…
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Genetic diseases present some problems and challenges that have to be dealt with to possibly make health care less expensive and more effective. I believe it should start at birth with DNA referencing being carried out on newborns. A DNA…
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Evolution is the process by which speciation (the creation of species) occurs. Each type of organism is a species, divided into these groupings by characteristics such as anatomy and physiology. Evolution also refers to the adaptations that occur in organisms,…
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Deoxyribonucleic acid (DNA) is the genetic material of human cells. Changes in the DNA can disrupt cell function and result in disease, including cancer. Types of alterations include damage due to environmental effects and mistakes made during replication. Strand Breaks…
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