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If we all came from Monkeys, then???

By jdclyde ·
For the sake of this discussion, we will ASSUME that evolution is more than the "Theory of".

If we are to accept that Man came from Apes (barring the question of why are there still apes then) why are there so many "races" that are so different from one another?

I understand the idea of life addapting to their environment, but how long does that take, and can it explain the vast differences between the differnt races?

Why would Japanese be so much smaller, while black and white races average so much taller? Different diet maybe?

I understand the eskimo body to concerve heat, but most others I just don't follow.

And how does this relate to certain races having less of a resistance to certain disease or lower/higher tolerance to booze?

And with more people moving to different climates, how long does it take to re-adapt to a new climate, even if breeding among other races did not happen?

And of course if we are all the human race, how can there be so many differenses in our DNA, from race to race?

If we all started from the same mold, how can we have become so different?

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Misconceptions

by jmgarvin In reply to If we all came from Monke ...

I have a biologist wife so I've been forced to at least have an understanding:

a) Why are there still apes?

It doesn't work that way. That's like asking why is there still strawberry ice cream if I ate all the vanilla.

b) Races on the planet aren't different genetically. We're all homosapiens. We look a little different on the outside, but genetically we are all the same species.

c) Adaptation can take a short time (the moth example) or a very long time (humans)

d) Why are humans different on the outside then? Some of the environment plays into it. Other things as well. Humans are VERY adaptable. We can (and do) live anywhere on the planet. We're cool like that.

e) Booze, etc?? Well, this boils down to tolerance. I'm mostly irish, so I can hold my drink ;-) However, native americans didn't drink until the europeans showed up. Their bodies don't metabolize it as well. An example would be:
Go eat a mean you don't usually eat. Eg: If you eat mostly veggies, go eat a REALLY greasy meal at a BBQ joint. Tell me what happens...

f) Climatic adapation...I'm not sure I follow...

We're all genetically the same species, just different people. I suggest you check out Richard Leaky's book The Origin of Humankind (http://www.amazon.com/gp/product/0465053130/sr=8-1/qid=1156133525/ref=pd_bbs_1/104-6815651-3999949?ie=UTF

Keep in mind a lot of people (mostly rasist) want you to believe that humans have slightly different DNA...this isn't true. If it were we'd be different species (and we aren't).

Why are we so different? It boils down to a few things, but honestly genetic diversity is GOOD for the species as you breed out the "bad" things...

Inbreeding is bad, right? Why? You get kids with flippers and 12 arms...if you don't inbreed you don't get that...so it is better NOT to do it...

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Inbreeding

by TonytheTiger In reply to Misconceptions

simply makes recessive genes more likely to come out. That recessive trait could be a good one or a bad one. Unrelated people can also have good or bad recessive traits come out. The six fingers thing is just what people say to reinforce a social taboo.

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What about mental abilities?

by jdclyde In reply to Inbreeding

Is that just "what people say"?

We always see "in the movies" that the inbreeders (generations after generation) have more defects mentally and physically.

I have never seen or heard anything to say otherwise to make me question that. Are you saying it isn't so?

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If I remember correctly

by NickNielsen In reply to What about mental abiliti ...

from the genetics work we did in biology class, regressive traits become more common in a limited gene pool. This is given as the reason for the high incidence of hip dysplasia in many purebred dog breeds.

What's truly funny is that I went through basic training with a guy from Tennessee. He was from "up'ar bah three staetes, a coupla hollers aht from Bristol." As we all did when we were young, he once performed a most egregiously stupid act. When asked "Were your parents cousins?" his response was "Yeah. Why?"

On further quetioning, we determined that his parents were NOT first cousins nor even second cousins; it was just that family meant a lot up there, so people kept track.

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Recessive traits

by TonytheTiger In reply to If I remember correctly

also are more common when both parents have the recessive gene. The difference is, in a limited gene pool, there's a better chance of getting a mate with the same recessive gene. And again, not all recessive genes are bad. Some people have a "defective" t-cell construction that the HIV virus cannot attach to, for example. Meaning they get it, but it doesn't hurt them.

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A taboo is a pretty stong thing.

by TonytheTiger In reply to What about mental abiliti ...

In some states it's legal for first cousins to marry, others it's not. I've not seen any data to suggest that the states that allow it have a higher incidencd of "abnormal children", though if it were, do you think they would include as "abnormal" any heightened abilities, super-genius, etc.?

It's all part of human nature, that's all... if the abnormality is bad, somebody must have done something wrong to cause it. If the abnormality is good, it's considered a gift.

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inbreeding - more clarity

by Ssp@Techrepublic In reply to What about mental abiliti ...

I suppose the inbreeding that you are referring to with problems is the ones where blood relations are involved (i.e., a very close relative). When the relationships are not that close, it is ok and not a problem.

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Sickle-cell, hemophilia, etc.

by TonytheTiger In reply to inbreeding - more clarity

are "not a problem"?

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Isn't that the definition of it?

by jdclyde In reply to inbreeding - more clarity

breeding within the same small group? How far out on a limb of the family tree does it have to be?

As long as "new blood" gets mixed in along the way, how much of a difference does that make?


http://en.wikipedia.org/wiki/Inbreeding
"Inbreeding is breeding between close relatives, whether plant or animal. If practiced repeatedly, it often leads to a reduction in genetic diversity, and the increased expression of negative recessive traits, resulting in inbreeding depression. This may result in inbred individuals exibiting reduced health and fitness and lower levels of fertility.

Livestock breeders often practice inbreeding to "fix" desirable characteristics within a population. However, they must then cull unfit offspring, especially when trying to establish the new and desirable trait in their stock."

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I think that is the problem

by maecuff In reply to Isn't that the definition ...

in the small town I live in. There are too many people and too few daddies..

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