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September 16th, 2009 at 7:29 pm

How Do Mutations In Wildlife (like Africa Or India) Happen? Please Help Me With My Homework ?

Mutations in animals
Mutations in the wild
Mutations in wild life

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  • Marcia (1 comments)
    7:33 pm on September 16th, 2009 1

    ok… mutations are changes in the sequence of nitrogenous bases in the dna of an organism.
    when an organism has a genetic mutation it means that when the organism is born, the sequence of nitrogenous bases are changed resulting in things such as an extra layer of muscle and such… so when they happen in the wild, it is basically a birth defect. lol happy to help :)

  • Brii (1 comments)
    8:17 pm on September 16th, 2009 2

    When you say mutations do u mean adaptations? Adaptations is when an animal changes over a loooooong period of time.

  • Mego (1 comments)
    8:18 pm on September 16th, 2009 3

    Mutations probably occur as a result of disrupted or changed DNA. Mutations are the exception or anomoly. They are a birth defect. Exactly what gene mutation(s) produces a predictable change in terms of what we can see, feel, or predict in terms of health conditions is not well known. Less known is exactly how the mutation comes to be. Even less is known about the cause of most mutations.
    The last I read, genetic mutations can occur as a result of mechanical means – something occurs to physically disrupt the DNA strand development. There is still some discussion that sun or climatic exposure changes in an enviornment may lead to mutations. However, as we seek more understanding about the metabolism of sun delivered/based/originating Vitamin D there is an accompanying argument that sun and climatic exposure changes may actually generate a bio-chemical change; in other words the mutations may originate in sun or climatic changes but they are ultimately generated by chemical changes. It appears that environmental chemical exposure change is the most consistient factor in visable mutations. The single thing that almost everyone agrees with is that visable mutations are probably due to gene mutations.
    For example, it is pretty well accepted that human fetuses exposed to excessive alcohol result in babies being born with what is called Alcohol Fetal Syndrome. At the same time we have no idea which gene or combination of genes are damaged in those born with Alcohol Fetal Syndrome. We know that many “drug babies” are not only born with an addiction but also a number of different and relatively predictable other health problems. By assessing the specific associated health problems of a drug baby, we can also pretty well determine which drug or combination of drugs they were exposed to. We can assess and predict with enough accuracy to be able to make a number of determinations based upon the defects and mutations we see in individual children. Yet we do not have measurable, irrefutable proof that the mutations we see are caused by gene mutations, which gene or gene mutation combinations produce what results, or even how they occurr.
    Case in point. A couple of months ago, China announced something like a 40% increase in human babies born with cleft pallets over the past 6 years within their industrial areas. The do not have the same increases in other parts of the country. The primary environmental and cultural change in these areas is the increase of industrial production and industrial chemical contaminate exposure There have been no such changes in the areas without a corresponding increase of instustrial production and industrial chemical production exposure. We don’t know for sure that industrial activity has led to these increases, exactly which chemicals are involved, which gene or gene groups are involved, how the chemicals actually alter the genes, and so on. But, industrial production and/or industrial chemical contaminate exposure seems to be a definite factor.
    Usually we use data gathered from animals to predict similar results in humans, Increasingly, we have data collected and reported on humans. My belief is that we can do the reverse and use human data to predict similar results in wildlife. With this belief, I strongly suspect chemical contaminate exposure. How it arrives in a location within India or Africa depends upon the region in which the mutations are ocurring. I’m guessing that there are some folks out there with enough chemical contaminate data (human or animal) to have some suspicions about some of the specific chemicals at work; then all one has to do is identify possible sources followed by potential transmission mechanismims.

  • Amandaa! (1 comments)
    8:43 pm on September 16th, 2009 4

    Dinosaurs became birds which came home with us to that we can have Thanksgiving.

 

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