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Edited by ATPsynthase12:
3/19/2015 1:40:04 AM
13
Micro and macro evolution are not the same thing, but it's okay because it appears that lots of people make this mistake. Micro evolution is the change in allelic frequencies over time (example: B and b code for skin color. Over ten years the allelic freaquencies change from b=.50 B=.50 to B=.75 b=.25 in a population of desert nomads) . Macro evolution is the change in phenotypic variation for a select population of a species(example: genotypes(frequencies) code for phenotypes(individuals or whole numbers). Over 10 years the genotypic variation of the 100 desert nomads change from BB=.25 Bb=.5 bb=.25 or phenotypically BB=25 Bb=50 bb= 25 where B and b are codominant, BB codes for dark skin, Bb codes for tan skin and bb codes for white skin. In 10 years, the 100 individuals change to BB= .70 Bb=.3 bb= 0 or phenotypically BB=70 Bb=30 bb=0. This indicates directional selection for darker skin tone due to the environment.) welcome to population genetics 101.
For the sake of the argument, the numbers do not match up for anyone who knows this and want to check this with Hardy-Weinburg. This is merely an example to teach people.
English
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Surprised I understood that. However there is a real life example of that. The peppered moth It was originally white with black dots, because that was the colour of the moss that grew on the trees. However the industrial revolution killed all the moss and the rarer Black peppered moths blended into the environment better and the population changed to the black ones
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I actually learned about that in class!
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Yeah it's a really popular example
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Dafuq i did just read?
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The correct explain action of macro and micro evolution
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Edited by NubbleSocks: 3/19/2015 4:26:33 AMCould you explain the difference in layman's terms? All I got out of it was, B x b - 34 + (-4) = porn.
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Edited by ATPsynthase12: 3/19/2015 4:49:56 AMAlleles are variants of a particular gene and code for genotypes, genotypes code for traits such as eye color or skin color. Phenotypes are the representations of those traits (I.e. Brown hair or blue eyes) Macro evolution is the change in Phenotypes or representations of traits over time. So squirrels changing from the majority of the population being brown to the majority of the population being black due to introducing a predator into the inviting entrust preys on brown squirrels is an example of that. Micro evolution is the change in allelic frequency over time, which leads to a change in genotypes frequency over time and if big enough can cause a noticeable change in the population (ie the change from brown to black to avoid predators). So if black is B and brown is b and black is dominant over the other, then evolutionary adaptation states that for this scenario you can expect B allele to increase which will also increase the population of black squirrels while decreasing the population of brown squirrels. So really when people state that macroevolution makes dogs give birth to new species of rat-dogs in a 1000 years they are talking out of their ass. In reality they both are interconnected. The only way you could gain a new species from macro evolutions is that eventually the deficit between brown and black squirrels get so great and they look different, behave differently, eat differently etc. then you could possibly have a new species or sub species. That is extremely rare because typically genotype frequencies fluctuate greatly for one variance to become so different that it becomes a new species would require serious selection for a particular species. I hope that makes more sense lol without the party you're explaining it to not having a strong understanding of biology it makes it difficult to explain the simple terms biological terms in ways that laymen can understand
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You have just summed up basic genetic selection over a period of time in a controlled environment... and actually got it right... I'm impressed
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Lol I basically solved the argument and these idiots didn't even notice! And thanks man, biology is my thing
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Appreiate it, I was just trying to over simplify it but you made perfect sense
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Lol someone failed at real science then turned to biology
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And I love it how no one comment on this lol went right over your heads
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This is the definitions of both those terms that is taught in a college population genetics and you guys wanna argue about your interpretations of the terms
