Posted on 12/11/2007 12:34:37 AM PST by anymouse
Brief applause and small flag waving for your correct use of “infer.” And at 3:00 a.m. (Eastern) too!
Have a nice day!
:^)
Selective pressure? One problem I see is that the most “successful” among us see little or no pressure to reproduce.
the less you understand the more of a higher creature is necessary for explanation.
Humans are evolving you say?? Into what? Got any evidence of humans with claws or wings or poison fangs or anything like that, i.e. any evidence of REAL/MACRO evolution in humans??
That’s funny, humans are getting dumber and dumber, look how many will vote for Hillary! LOL
As anyone who has sat through a ball game at Fenway Park can attest.........
You’re welcome.
So, the cause of the extinction of the Neanderthals may have been discovered. They couldn’t receive dental treatments because they couldn’t be anesthetized in the oral region, and they all died of complications of gingivitis.
The area of the human genome that is contained within genes is a fraction of the total DNA. Genes themselves are comprised of promoters, enhancers, upstream and downstream regulatory sequences, coding and non-coding sections of the message. The coding parts, that are the blueprint for the proteins or RNAs, are themselves small parts of the entire gene.
I'm not sure if the researchers here are using the word "gene" in the context of the entire gene with all the regulatory sequences included, or just the part of the gene that codes for a product (which is also a correct use of the word).
Either way, when the researchers state that 7 percent of the genes are undergoing rapid evolution, they are talking about a very small fraction of the entire human genome.
That apparent short circuiting also allows mutations to survive that may weaken the individual in some areas, yet strengthen them in others. IOW the gene pool is getting bigger.
There has always been a circularity about natural selection as an explanation of evolution., Anyway, given the obvious role that culture plays in the cnages that have been observed, determinism and chance both seems to have been overemphasized, and human intellligence and morality played down. In any case, the whole effort to connect us with chimps seems odd. The more they learn, the more they find out how relatively fixed human nature is. The course was set and what they call evolution is more like the development of an individual human. You are what you think and do:
That’s what evolution is.
Biologists talk about it as change in allele ratios over time. Alleles are the different forms a gene can take. Oversimplified example: green, blue, hazel and brown eyes could all be alleles of one gene. If that gene were to mutate you might get purple eyes. If blue eyes couldn’t see as well and the people with them couldn’t find food, over time there’d be fewer of them. That’s evolution.
Translated, that means adaptions that don’t hurt stay in the population. Adaptations that help, increase.
That’s selective pressure, but not with the result you’d like.
In evolutionary terms, reproducing trumps graduating.
You seem to be forgetting that even two hundred years ago, the human population was much smaller. Better nutrition explains the population explosion better than anything. Even a hundred years ago, many people in London were malnourished. Interesting to read Charlie Chapalin’s autobiography. He was small because he grew up without much food. The Japanese today are much larger than their great grandparents.
A lot of fuss could be avoided if evolutionists would use the term “adaptation rather than “evolution.” Human culture seems to control this process far more than anything that other animal species can do, because there number of choices is so much less. Let the biologists study bugs.
If the biologists only study bugs, who gets to study people?
So, how does evolution really work? Maybe there are other answers.
There are hundreds of genes involved in this.
Besides white folks having changed to be better able to eat dairy products as adults, the Chinese appear to have changed to accommodate a rice diet.
Eskimos, Sa'ami and other Polar People can eat more meat and fat than you can imagine and keep their cholesterol and triglycerides within reasonable bounds.
And so on.
Forsooth. In particular, Japanese girls are much, um, 'larger' than their grandmoms.
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