The study of DNA and genetics is one area of science which is not only theoretically fascinating but also practically useful in many ways. One of the main applications of the growing understanding of DNA and the role that human genes play in people's lives is various forms of DNA genetic testing. This is a process which has a wide variety of applications and each of them is useful to people in different ways. We'll now take a look at various forms of DNA genetic testing and what they are used for.
One area of genetic testing which is commonly undertaken is that relating to genetic diseases. It is possible to carry out DNA genetic testing on an adult human in order to determine if they have genes in their makeup which will lead to a serious illness or adverse health condition later in their life. This is possible to detect before the disease shows any symptoms whatsoever. A huge advantage of this form of early testing is the extra time both the patient and the doctor have to put into place preventative and coping methods which can help a person navigate the challenges of their health and live as fuller life as possible.
Another use for this type of testing is to screen fetuses in the womb to make sure they are developing correctly and have no genetic abnormalities. Some of the conditions which can be detected by foetal DNA genetic testing include Down syndrome. The parents of a foetus that has tested positive for some form of DNA genetic disorder have a range of options. They may wish to terminate the pregnancy in order to spare the child from living a life of illness. Healing meditation
Gregorian calendar
Most people have no idea how old calendars are, or how interesting their history can be. Classic Jewish dating in their calendar system runs into the thousands of years, currently. Traditional Chinese calendars also currently look at time in those same thousands of years. The Gregorian calendar, which is the system of date-keeping accepted for worldwide use in commerce and general historical tracking, is a revision of the old Julian calendar.
As a matter of history, our present day calendar is a result of a Papal Bull issued by Pope Gregory XIII in 1582. Given the dominance of Roman Catholicism in Western Civilization at the time, it should come as no surprise, then, that this calendar was instituted in order to account for a drift in the dates of significant religious observations, such as Easter, in the church calendar. The Gregorian method also ensured that no such further drift would occur again, at least over several centuries.
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