I think i figured out the alleles for unicorn/pegasus and earth ponies.

[Winger7632 124]

 

Tell me if you see any flaws.

[RrVPfX9cPtw59FpC 1,304]

 How would aa be both Pegasus and Unicorn?

[Winger7632 124]

 How would aa be both Pegasus and Unicorn?

the allele "aa" just shows it is expressed when it has no dominant alleles (A) whatsoever. Its just a representation, but i hypothesized that the wings/horn is decided through some sort of crossing over and/or sex linked as well, i could do another representation with sex linked but i could have to do some research. Either way the races for pegasi and unicorn are both homozygous recessive and the earth pony race would be heterozygous and homozygous dominant. Going off of the baby cakes episode where 2 earth ponies had a pegasi and a unicorn. Any other way would not make sense.  

[Sir Xarthas VI 470]

You would also have to consider even more variables as ancestry also matters. As Mr. and Mrs. Cake make a prime example. Both of them were Earth Ponies yet they had a Pegasus AND a Unicorn. Ancestry is obviously a large key factor. So that being said, there'd be about 9000 different variables to deal with. Also, where would Alicorn's go? I would think Earth Ponies = aa, Unicorns/Pegasi = Aa, and Alicorns = AA. Or vice versa.

Edited January 16, 2014 by DJ Alicorn

[Winger7632 124]

You would also have to consider even more variables as ancestry also matters. As Mr. and Mrs. Cake make a prime example. Both of them were Earth Ponies yet they had a Pegasus AND a Unicorn. Ancestry is obviously a large key factor. So that being said, there'd be about 9000 different variables to deal with. Also, where would Alicorn's go? I would think Earth Ponies = aa, Unicorns/Pegasi = Aa, and Alicorns = AA. Or vice versa.

 the only problem with that is AA is dominant and as we all know if dominant is showing then it means its going to express the dominant trait so it wouldn't make sense for Alicorns to only express in the AA but no the Aa, also alicorns are very special and we only know of 4, one of which was genetically altered mid life. I hypothesize that Alicorns are a mutation displaying a dominant allele but also having an extra chromosome somewhere in there. It could also be sex linked as the only alicorns we know of are female. Either way they are definitely not just AA or Aa (they must have something extra in chromosomes or where the magic is centered). Also earth ponies can not be anything but AA and Aa due to 2 earth ponies who were carriers have a unicorn/pegasus (which is what i was saying from the beginning with ancestral heritage. If earth ponies were aa then it would be essentially impossible for the cakes to have a unicorn and pegasus. 

Edited January 16, 2014 by little gamie

[Scootalove 10,689]

I'll go out on a limb and say that the Baby Cakes episode was the first step in confusing some people about how pony genetics work. Those are some good possible scenarios, at least it explains it better than the episode rarely did.

[Shift 4,274]

Numbers don't lie.

 

Even when I don't understand them.

[DND 2,355]

This fandom, I swear. So devoted! XD

 

I kinda learned this stuff in 7th grade, but then forgot about how to understand and do it, so I might not say much, but it would seem accurate if the Earth Pony got higher-rated in potential genes because it seems that Unicorns and Pegasi got it easier in survival; I was mainly supporting natural selection.

[Winger7632 124]

I'll go out on a limb and say that the Baby Cakes episode was the first step in confusing some people about how pony genetics work. Those are some good possible scenarios, at least it explains it better than the episode rarely did.

Actually it probably clarified it more than confused us. If you think about it, without the episode we wouldn't know if it acts more like it does on earth or if its a completely new system. This way though, we have confirmation it behaves more to earths rules. 

[Scootalove 10,689]

Actually it probably clarified it more than confused us. If you think about it, without the episode we wouldn't know if it acts more like it does on earth or if its a completely new system. This way though, we have confirmation it behaves more to earths rules. 

I guess we can agree on that, I just felt that they didn't explain it a bit more clearer.

[Winger7632 124]

This fandom, I swear. So devoted! XD

 

I kinda learned this stuff in 7th grade, but then forgot about how to understand and do it, so I might not say much, but it would seem accurate if the Earth Pony got higher-rated in potential genes because it seems that Unicorns and Pegasi got it easier in survival; I was mainly supporting natural selection.

That would be a good theory but you have to remember earth ponies are the only race to be able to grow food, pegasi are the only ponies to be able to control the weather, and unicorns were the only race to make it night/day so in theory natural selection was completely even in these 3 races as they needed each other. I'm not saying natural selection does not exist in this world, but i do believe we are yet to see a pony race that was not favored by natural selection. 

I guess we can agree on that, I just felt that they didn't explain it a bit more clearer.

yes i would have really liked them to explain it a little more but what they gave me was enough to formulate a hypothesis on the very very basic makeup of their race genetics. so i'll take it! 

[Scootalove 10,689]

 

yes i would have really liked them to explain it a little more but what they gave me was enough to formulate a hypothesis on the very very basic makeup of their race genetics. so i'll take it! 

You did a good job of doing that, I salute you sir!

[Courageous Thunder Dash 7,825]

I actually have a similar topic with this. But here's something that could trip things up. What if there were only earth ponies and trisomies popped up causing the sprout of pegasai and unicorns? Like if one set of chromosomes in a karyotype was responsible for determining that the pony would have a horn or a set of wings? Have you also considered how an Alicorn is made genetically?

[Winger7632 124]

I actually have a similar topic with this. But here's something that could trip things up. What if there were only earth ponies and trisomies popped up causing the sprout of pegasai and unicorns? Like if one set of chromosomes in a karyotype was responsible for determining that the pony would have a horn or a set of wings? Have you also considered how an Alicorn is made genetically?

In science you make hypothesis and go on from there, this is merely if the races are determined by alleles and not chromosomes but it could also very well be sex linked or chromosomal. I explained my hypothesis on Alicorns in the idea that they are decided through either a genetic change mid life (twilight) or by having the alleles for a unicorn/pegasus and also having a extra set of chromosomes for being able to display both traits, kind of like an adapter if you will. (Cadance)  So when you think about it i believe its Allele based and not chromosomal based on the fact that Mr. cake basically said its because of his heritage and we could easily use a pedigree if we knew how much family he had to figure out where the path led. Also judging from the mane six's reaction in the episode its clear to me its normal for races to have the same type of race, making the idea of it being more of a parental thing more likely. Of course you can have parents passing down their races through sperm and egg and the respectable halves of the chromosomes. But i find this being allelic more likely than chromosomal.

Edited January 16, 2014 by little gamie