96 réponses à ce sujet

[Onyx Jaguar]

Excellent! I like it!

[Devidose]

superimposed wrote...

Actually, it's because both blonde hair and blue eyes are caused by recessive genes, essentially it's what happens when genetics goes wrong. They'll be wiped out because the only way they would survive is inter-breeding.

Apart from the part mentioning recessive genes, the rest of that is incorrect.

[superimposed]

Devidose wrote...

superimposed wrote...

Actually, it's because both blonde hair and blue eyes are caused by recessive genes, essentially it's what happens when genetics goes wrong. They'll be wiped out because the only way they would survive is inter-breeding.

Apart from the part mentioning recessive genes, the rest of that is incorrect.

No, it's not. Blonde hair and blue eyes, just like red hair and pale skin, are pigmentation problems.

[Noodlesoupninja]

My shep has blond hair and blue eyes... he might be a n.a.z.i. I don't trust him.

Modifié par Noodlesoupninja, 06 mars 2010 - 12:06 .

[Zemore]

Noodlesoupninja wrote...

My shep has blond hair and blue eyes... he might be a **** I don't trust him.

ask him if he wants a bagel

[Borschtbeet]

Probably because it's not really important.  I say that as someone with both blonde hair and blue eyes.

Modifié par Borschtbeet, 06 mars 2010 - 12:09 .

[Zemore]

Borschtbeet wrote...

Probably because it's not really important.  I say that as someone with both blonde hair and blue eyes.

do you want a bagel?

[Weskerr]

Zemore wrote...

Weskerr wrote...

Zemore wrote...

Weskerr wrote...

Doesn't captain Bailey have blonde hair and blue eyes?

i just realised somthing

Conrad verner proof we shouldent preserve blond hair and blue eyes

lol

everytime i see your name i hear Chris Redfeild and Barry Burton in my head screaming WESSSSSSKEEEER!!

Wesker is so deliciously evil. It must be because of his evil blonde hair and blue eyes.

[Errol Dnamyx]

Parents can probably choose whatever hair and eye color they like in the ME universe.

[superimposed]

Weskerr wrote...

Zemore wrote...

Weskerr wrote...

Zemore wrote...

Weskerr wrote...

Doesn't captain Bailey have blonde hair and blue eyes?

i just realised somthing

Conrad verner proof we shouldent preserve blond hair and blue eyes

lol

everytime i see your name i hear Chris Redfeild and Barry Burton in my head screaming WESSSSSSKEEEER!!

Wesker is so deliciously evil. It must be because of his evil blonde hair and blue eyes.

Sure it's not all the black leather he wears?

[Zemore]

Weskerr wrote...

Wesker is so deliciously evil. It must be because of his evil blonde hair and blue eyes.

his eyes are red

[Llandaryn]

guise709 wrote...

So why are blondes so rare?

They all dye their hair before getting into space to avoid the jokes.

[Devidose]

superimposed wrote...

Devidose wrote...

superimposed wrote...

Actually, it's because both blonde hair and blue eyes are caused by recessive genes, essentially it's what happens when genetics goes wrong. They'll be wiped out because the only way they would survive is inter-breeding.

Apart from the part mentioning recessive genes, the rest of that is incorrect.

No, it's not. Blonde hair and blue eyes, just like red hair and pale skin, are pigmentation problems.

Yes it is. They occured in areas that didn't have the same environmental conditions as areas where darker pigments/hair were required through UV intensity.
This is why equatorial/tropical areas have darker hair and skin pigments than temperate, then returning again to darker pigments in the extreme polar regions.

There are cases of blondes, blue eyes, red hair, (which is even more recessive than blonde - Kelly) and a variety of other phenotypes that are recessive on a genetic level all throughout the game. Both games, I might add.

[Stoko981]

I think you're all ignoring the fact that the ME universe has the technology to allow a person to change their skin pigment at will. Maybe blue eyes and blonde hair are just out of style in the 2180s.

[Pauravi]

superimposed wrote...

Devidose wrote...

superimposed wrote...

Actually, it's because both blonde hair and blue eyes are caused by recessive genes, essentially it's what happens when genetics goes wrong. They'll be wiped out because the only way they would survive is inter-breeding.

Apart from the part mentioning recessive genes, the rest of that is incorrect.

No, it's not. Blonde hair and blue eyes, just like red hair and pale skin, are pigmentation problems.

No, he is right.  That's wrong.  They are not problems, they are adaptations.  Just because it involves a non-functional gene doesn't mean that the gene is "broken" -- the malfunctioning melanin gene is actually an advantage in their case.  People who live at higher latitudes receive less sunlight on average.  Excessive amounts of melanin can cause vitamin D deficiency.

Also, categorizing traits as simply dominant or recessive is far too simplistic and doesn't reflect the actual complexity of the interaction between the genes; there are several types of dominance, and the function of multiple genes can interact in different ways.

Consequently, it is untrue that recessive traits are never expressed without breeding between two people who actually express the gene themselves.  As an example consider the Mongolians, who occasionally exhibit blonde hair and fair skin:



These traits are thought to have been introduced by a small population that intermingled with Europeans hundreds of years ago.  Even though the trait is categorized as recessive, it still crops up, even when neither parent exhibits the trait.

Modifié par Pauravi, 06 mars 2010 - 02:36 .

[Llandaryn]

Pauravi wrote...

As an example consider the Mongolians, who occasionally exhibit blonde hair and fair skin.  These traits are thought to have been introduced by a small population that intermingled with Europeans hundreds of years ago:

Even though the trait is categorized as recessive, it still crops up, even when neither parent exhibits the trait.

'Zacly. Such traits, like blue eyes, are controlled by recessive alleles, so that two brown-eyed parents with one Brown allele and one blue allele can produce blue-eyed children, but two blue-eyed parents can never produce a Brown-eyed child.

Similarly to the Mongols, I've seen a couple of pakistani people with blue eyes, even though most have brown.

[Zemore]

i dont know much about this topic myself but does it work the same for Green eyes?

[Llandaryn]

Zemore wrote...

i dont know much about this topic myself but does it work the same for Green eyes?

It's similar. There are 2 sets of genes that control eye colour -- one set has B (brown) dominant over b (blue) and the other has G (green) dominant over b (blue). Dominance goes B > G > b, so simply put, a mother and a father with Bb/Bb genes will both have brown eyes, with a 1 in 4 chance of having a blue-eyed (bb) child. A mother with brown eyes of the type Bb/Gb and a father with blue eyes of type bb/bb have a chance of either brown-eyed children, green eyed children or blue-eyed children, depending on which alleles are used during conception. Blue-eyed children can only be bb/bb whereas green-eyed children need only a lack of brown ( as blue is recessive to green.

[Zemore]

Llandaryn wrote...

Zemore wrote...

i dont know much about this topic myself but does it work the same for Green eyes?

It's similar. There are 2 sets of genes that control eye colour -- one set has B (brown) dominant over b (blue) and the other has G (green) dominant over b (blue). Dominance goes B > G > b, so simply put, a mother and a father with Bb/Bb genes will both have brown eyes, with a 1 in 4 chance of having a blue-eyed (bb) child. A mother with brown eyes of the type Bb/Gb and a father with blue eyes of type bb/bb have a chance of either brown-eyed children, green eyed children or blue-eyed children, depending on which alleles are used during conception. Blue-eyed children can only be bb/bb whereas green-eyed children need only a lack of brown ( as blue is recessive to green.

hmm but arent Green eyes rarer than Blue?
my eyes are green and i do alot of sketching and eyes have always been an interest

Modifié par Zemore, 06 mars 2010 - 02:59 .

[Neria Rose]

Llandaryn wrote...


'Zacly. Such traits, like blue eyes, are controlled by recessive alleles, so that two brown-eyed parents with one Brown allele and one blue allele can produce blue-eyed children, but two blue-eyed parents can never produce a Brown-eyed child.

Similarly to the Mongols, I've seen a couple of pakistani people with blue eyes, even though most have brown.

That is, of course, assuming the offspring of the blue-eyed parents does not have a mutation which would make his/her eyes appear brown. Sorry, I'm picky about that word 'never'.

[GenericPlayer2]

You don't meet nearly enough humans in both games to make such an assertion. You don't even know if anyone you meet is displaying their natural hair colour.

[Llandaryn]

Zemore wrote...

hmm but arent Green eyes rarer than Blue?

Yes, because not many people have them. Over here, blue eyes are more common than brown (at least amongst the native white-folk) despite the fact that Brown is the dominant phenotype. 'Dominant' doesn't mean that there's more of it. Think of it this way; because blue is recessive, it can 'hide' for generations and manifest itself further down the line. Because brown is dominant, once it's out of a genome, it's out for good, and no blue-eyed person is going to have a brown-eyed kid unless they conceive a child with a brown-eyed parent.

Neria Rose wrote...

Llandaryn wrote...


'Zacly.
Such traits, like blue eyes, are controlled by recessive alleles, so
that two brown-eyed parents with one Brown allele and one blue allele
can produce blue-eyed children, but two blue-eyed parents can never
produce a Brown-eyed child.

Similarly to the Mongols, I've seen a couple of pakistani people with blue eyes, even though most have brown.

That
is, of course, assuming the offspring of the blue-eyed parents does not
have a mutation which would make his/her eyes appear brown. Sorry, I'm
picky about that word 'never'.

The genotypes would still have the blue-blue expression, though.

Modifié par Llandaryn, 06 mars 2010 - 03:06 .

[Zemore]

hmm its interesting how indepth some of these convos but thanks guys for the nice info

[Karstedt]

Llandaryn wrote...

It's similar. There are 2 sets of genes that control eye colour -- one set has B (brown) dominant over b (blue) and the other has G (green) dominant over b (blue). Dominance goes B > G > b, so simply put, a mother and a father with Bb/Bb genes will both have brown eyes, with a 1 in 4 chance of having a blue-eyed (bb) child. A mother with brown eyes of the type Bb/Gb and a father with blue eyes of type bb/bb have a chance of either brown-eyed children, green eyed children or blue-eyed children, depending on which alleles are used during conception. Blue-eyed children can only be bb/bb whereas green-eyed children need only a lack of brown ( as blue is recessive to green.

Don't forget the piledriver modifier! That increases the chances of blue eyes to 1/3. Oooh riiight! Zero G should actually increase the occurance of blue eyes! Giggity...