Genetic diversity — the genetic variations among individuals within a species — means all the difference in the world to human life and development. It is genetic variation that allows life to continue and evolve in new directions… Human evolution went through such great leaps because of genetic diversity ‘race’. It is a property that is constantly being created or destroyed according to region and climate. Nevertheless it remains an important basis for any future convergence of different human life-forms–a subject not yet widely understood by today’s biologists because less attention has been paid toward vertical inheritance within such groups; however horizontal gene transfer is crucial here as well.
From one generation to the next, genetic variation brings much insight into today’s health problems as well as those of its own offspring.’ Who will be the fattest nation?’ ‘Which populations will break new ground in Olympic medals?’ And most importantly, ‘What kinds of conservation efforts do different groups need to make for what remains of their endangered plants or animals while they themselves should be saved from extinction? People who are allowed to mine only a single small plot cannot afford to close ecologically valuable woodland for any reasons at all. This short-term approach in such matters influences our long-term prospects.
A great danger lurking behind a mist of words about nature conservation, which most would never recognize without first-hand experience — as a result large groups of wildlife and forest disappear from sight. Yet when we look at existing forests left standing nowhere else will provide us with the same quality air millions have grown up on for 1000 generations. The forests would be deserted just like people running away from some cage; only in this case 400 unique species will also disappear forever, which is why their numbers cannot be sparedAnd so it is that, ultimately, the fate of the forest and its animals comes to depend on the whimsy of a small number of men.Men who use up oil, coal and iron from under our feet, enabling them to hold people in low-paid industrial jobs–or down simply by being there while still inviting more ‘down’ wilderness with each passing year. At the same time these little decrees issue another injunction against timber for any sort of purpose if.
The origin of genetic diversity in human beings
Over more than 100,000 years, human genetic diversity has been influenced by migration, mutation and natural selection. The cradle for mankind’s diversified human form was finally left behind in Africa. As those ways of life spread across the globe and different environments came into being, human beings underwent an even further process in their transformation. Geographically separated groups of people developed different characteristics which led to a mutation in their genetic make-up and henceforth called human diversity. Perhaps it is true that the tapestry of human beings is woven by this nexus.Africa still has the world’s highest genetic diversity today.
According to genetic studies, African populations are more varied than those from either Europe, Asia or the Americas. This diversity results from a long evolutionary history and the many migrations that have shaped modern humans themselves ‘ genomes.
Contribution of Genetic Diversity to Adaptation of Humans
One of the most important ways genetic diversity has affected life is through adaptation. As humans moved to areas new climates and foods could be found, genetic diversity stood by. Genetic diversity has provided mankind the basic substance with which population can adapt. Populations like those in northern Europe have lighter skins in cold climates. Their low pigmentation allows them to make a lot of Vitamin D, which the body requires but which can rapidly become deficient in places where there’s little sunlight all crucial if one doesn’t want to contract rickets! By contrast, populations living near the equator where UV rays are strong evolved dark skin. This gives them a measure of protection against those harmful sunbeams and helps keep skin cancer at bay. This clever but puzzle-like adaptation is the ability to live at high altitudes. Peoples in the Andes and Himalayas are able to live in places where there is almost no oxygen at all. This demonstrates how genetic forms are selected-and why or else they would not have survived over so many generations to reach us today.
Genetic Diversity and Resistance to Disease
And so it is genetic diversity that makes for a human being’s health. The perfect combination of genes, factors affecting everything about you from not catching fatal diseases and preventing various other kinds of illnesses. The classic example of this is the sickle-cell condition… Mrs. Reagan, the wife of the former President, is one of those having genes. If a person has one copy of this gene it will not in any way hurt their health; but should a person come by both copies (one from each parent), this killer can detect susceptibility to a scale greater than his wildest dreams.
As another example, in theory it is a good thing for dealing with many forms of pathogenic bacteria that different racial groups often have different HLA genes. Refuting outdated theories about race the Reproduction Of Gene Pools Also refutes former theories on race. According to current genetic breakthroughs, the difference level between different races is a small fraction of what it takes to differentiate between similar ties within a single race in general. Though certain groups may, from their environment of origin, bear the particular genetic markers that condition population j:iÉ̵aon, these differences in kind are usually mere racial divisions!iᅈopł.
The Future of Human Evolution
In an increasingly globalised world, it’s clear that humanity will go on evolving in myriad innovative ways. The future depends to a certain extent on human genetic diversity being preserved. The future may bring more technological wizardry than ever, such as gene therapy and gene editing, which would be pandering directly to human taste and allowing direct transformations of human evolution. For example, CRISPR technology has raised a social controversy over whether human beings should be allowed to tamper with their genetic destiny. {\em And the} capability to manipulate human DNA–along with natural processes that have historically preserved diversity within the genetic family of humans–injects questions about life in general into evolution, a religious issue which some readers may wish to pursue. }}
Out in front, of course, the future poses new challenges to human populations; such things as climate change; parasitic diseases which mankind brings upon itself by over-crowding itself into ever closer contact with animals of other species or indeed any likeness from where it might derive some benefit for its own kind; and the displacement of food resources could well exert selective pressures that shape what kinds of populations will exist in future. Genetic diversity is and will remain a major survival skill for human populations under attack from these and other kinds of pestilence by road (this has always been true): For example, if there’s an increase in the amount of antibiotic resistant bacteria diversity among immune system genes may well be the single most important factor determining which populations actually manage to resist these dangers and thus remain healthy.
In order for our children to inherit the riches of genetic diversity, the story must go on and populations must be maintained. This is equally true when something like that happens to biogenetic diversity among Africans who have kept more of a local perspective about what happens to them and to their children–although on this continent are the kind of qualities which we want. Anthropologist Robert Sussman (1994) has said that “The loss of each population is another strike against human genetic diversity.”
The need to sustain diversity is self evident in agriculture and ecology where one-type stands may be easier targets for disease (virologists call this “epidemics”) but fewer species in a biome make it more prone to environmental disturbance. Likewise, the gene pool of Homo sapiens itself–which has to keep both expanding and changing like any other closed system–must never be allowed to stagnate. It must be fed a continuous series of supply of new elements from outside if it is going to persist.
Conclusion
The prodigious scope of natural selection has given humanity its gene pool enhancing both adaptability and health. As we move into the future, safeguarding this genetic diversity is not just a lesson from our history, but our inheritance. Whether it’s delivered in an evolutionary or technical fashion, the future of human evolution will typically be influenced by these lively and dynamic forces.