If you ask any religious person who come first Adam or Eve?, She/he answer blindly that Adam come first, but from scientific view this is impossible and that is because ..
Lets check this video because I believe one video better than a thousand words.
http://youtu.be/z1Kdoja3hlk

The first known step of sexual differentiation of a normal XY fetus is the development of testes. The early stages of testicular formation in the second month of gestation requires the action of several genes, of which one of the earliest and most important is SRY, the sex-determining region of the Y chromosome. Mutations of SRY account for many cases of Swyer syndrome.
Swyer syndrome:
When SRY gene is defective, the indifferent gonads fail to differentiate into testes in an XY (genetically male) fetus. Without testes, no testosterone or antimüllerian hormone (AMH) is produced. Without testosterone, the wolffian ducts fail to develop, so no internal male organs are formed. Also, the lack of testosterone means that no dihydrotestosterone is formed and consequently the external genitalia fail to virilize, resulting in normal female genitalia. Without AMH, the Müllerian ducts develop into normal internal female organs (uterus, fallopian tubes, cervix, vagina).

A baby who is externally a girl is born and is normal in all anatomic respects except that the child has nonfunctional streak gonads instead of ovaries or testes. As girls' ovaries normally produce no important body changes before puberty, a defect of the reproductive system typically remains unsuspected until puberty fails to occur in people with Swyer syndrome. They appear to be normal girls and are generally considered so.

So Adam come as result of modification of Eve, So Eve have to be created first.

http://youtu.be/DadqEUXf4JU

This modification Chang rapidly due to smart sexual selection done by female.
the educated religious people who believe in evolution but with intelligent designer, but not by chance, argue that Adam and Eve tale is just symbolic and to explain how sin start in the world.
But didn't god know about Y chromosome , if he did then he should start the tale by creating Eve and then from Eve come Adam. I mean even the tale is symbolic it have to contain some facts.

Mitochondrial Eve:
refers to the matrilineal most recent common ancestor (MRCA) of all currently living anatomically modern humans, who is estimated to have lived approximately 100,000–200,000 years ago. This is the most recent woman from whom all living humans today descend, on their mother’s side, and through the mothers of those mothers, and so on, back until all lines converge on one person. Because all mitochondrial DNA (mtDNA) generally (but see paternal mtDNA transmission) is passed from mother to offspring without recombination, all mtDNA in every living person is directly descended from hers by definition, differing only by the mutations that over generations have occurred in the germ cell mtDNA since the conception of the original "Mitochondrial Eve".

Y-chromosomal Adam (Y-MRCA):
is a hypothetical name given to the most recent common ancestor (MRCA) from whom all currently living people are descended patrilineally (tracing back only along the paternal or male lines of their family tree). However, the title is not permanently fixed on a single individual (see below).

The age for the Y-MRCA has been variously estimated as 188,000, 270,000, 306,000, and 142,000 years. A paper published in March 2013 reported an older estimate of 338,000 years.[ Then two simultaneous reports in August 2013 provide younger estimates, one suggested 180,000 to 200,000 years, and another, based on the genome sequence of nine different populations, indicated the age between 120,000 and 156,000 years."

Source: Wikipedia
The scientific Adam and Eve never met, but their offspring met and survive which are modern human.
Scientific Adam have high survival value and scientific Eve have high sexual value, and these values inherited by their offsprings and it lead to the genetic load of existing human, while others extinct.
But there is no way that individual man and woman meet and make population because their offspring will extinct due to genetic mutation, you need at least forty different individuals to make healthy population.

Views: 300

Replies to This Discussion

Also, if you mean that most Christians worldwide believe in evolution, then sure.  The US is a fucked-up, educationally-stunted little pocket of crazy, amongst industrialized nations.

Our more dominionist fundie groups are trying to make us less exceptional in that way, though.  Sadly, their proposed method is making the rest of the world crazier and less scientifically literate.

Evolution of sex is very complex, till now most people including atheists do not accept that female is the superior gender,
We can we ask a simple question , can human species survive without men? and the answer is yes , and also the mutation could been occurred in any chromosome resulting in a deferent gender, maybe there was been other gender besides men but the physical strength of men makes them survive and selected by women(human) and other chromosome gender never survived , and that is because we know that evolution means every possibilities happened but only few survived.
I'm not writing this topic for those who believe in god or any spiritual things. Because this topics only for open minded people , Actually I don't care about religious after wasting times with religious people I realized that for religious people it's not about science and facts, it's social system , social circle , mental disorders , low self-esteem, security , search for protection and shield , seeking for approvals , everything else except science and facts.

DNA created the female as superior to the male in the area of general health. It is also statistically provable that at any given time in history 51% of the people on earth are female. The rigors of childbearing seem to be the answer for "why?" To guys: How would you like to carry a baby around in a stomach area larger the worst of your beer bellies for nine months, then go through that alternatively seriously painful and joyous delivery, some of them taking hours? No thank you. We are only superior to women because of long-standing cultural norms.

No thanks.  Wouldn't want to deliver a baby.  My sister-in-law took many hours, and I've heard some take days.

We are only superior to women because of long-standing cultural norms.

The whole might-makes-right thing got us a lot of mileage, yeah.  The greater physical strength of men is more impressive to observers than the ability to take greater amounts of abuse, even if the latter is probably a better general survival-trait.

I argue that she didn't have a name, but we had eggs long before chickens. ;)

Originally things were asexual, but nature found that there was not enough randomness there, and for more complicated life, that randomness was needed, and is why we got both genders, you can't have one without the other, yet anyway, (neither is superior, just different, and needed for that random code generation). Simple changes were one thing, but for the more complex ones, a more random way was needed, so when genders evolved, it worked and the species who had them evolved faster, and with greater diversity. A female can no more produce an offspring in the wild alone, than can a male (with, of course, the exceptions of those species who have evolved to reproduce either sexually or asexually, or ones that can change genders, have or develop both sets, or whatever is needed [usually for lack of a mate, as a last resort as it makes for more healthy/viable offspring to do it normally], there are always exceptions to prove the rules). Sexual reproduction is what allowed most of evolution to happen, at least as 'rapidly' as it did.

...or at least, that's a simplified version of my understanding of it, sorry if it sounds like 'I.D', but hindsight puts that kind of a spin on it, perception wise, especially when you simplify things in a bad way, like I did (lol). So even if we do get to a point where we can create offspring in a lab or whatever, where only one gender is needed (like so many sci-fi stories), we will still need to mix the genes of different people or we stagnate as a species.

-

As for the evolution of social gender roles (the other discussion up there), that my friends, it a very long story, and is a combination of genetic and social evolution. There is more to it than just social norms, people are attracted to certain things on a far deeper level, from 'strong over protective men' and 'attractive/submissive women', to 'ooo shiny!' One helped those people reproduce, the other helped them survive to be able to reproduce (finding water and such).

So women, if you do not want your men to be neanderthals, and men, if you do not want your women to be vapid, then you need to not breed with those people, you spread it around to the rest of us. We only have ourselves to blame.

Of course religion enforces those 'gender roles', and that's just one more reason they should be forgotten (right along with terms like 'adam and eve', what's wrong with 'Grok and Oova'? After all, wouldn't putting Adam and Eve on some kind of pedestal too much like an 'icon'?). XD

Millions of years ago we are asexual

female have the original copy of the chromosomes and male have one   chromosome changed from female (Y chromosome), 

changing in one  chromosome causes gender with different traits and if these traits preferred by original gender ( female) it would be survived.

evolution of sex happened before human evolved,but still female have the original copy of the species.

there maybe many gender have happened (changing in any chromosomes causes different gender), but changing in Y chromosome was successful because Y chromosome have no significant genes that affects functional operation of human body.

changing from X chromosome to Y chromosome is relatively new, so males are relatively new to species.

As the result we see that the biblical god was ignorant by made male first.

 

Obviously, Eve came first and was pregnant with Adam. When he grew up, they had sex and produced the murderer and the farmboy.

The murderer was the farmboy.  Cain brought the fruit of the field, while Abel brought the best of his flock.

Yahweh got all pissy, because Cain's offering didn't bleed all over the place.  You know how Yahweh loves the smell of burning blood.

And strangely, Yahweh's rejection of Cain's offering, taken from what he had to offer, upset Cain a little.

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