What is the Genetics of Blue Eyes?

What is the Genetics of Blue Eyes?

Chapters:
0:00 Intro
0:21 Gender
0:47 Are Blue Eyes Actually a Recessive Trait?
2:35 Why Do Blue Eyes Appear Blue?
3:51 The Genetics of Blue Eyes

What is the genetics of blue eyes, are blue eyes actually a recessive trait and can you predict what color eyes your children will have? Now blue eyes are generally considered the second most common eye color in the world after brown, with approximately 8% to 10% of the global population having them.

Sources:

Eye color - Wikipedia

Countries With The Most Blue-Eyed People - WorldAtlas

Why Did Blue Eyes Evolve? | Resource Center | Milan Eye Center

Melanin - Wikipedia

OCA2 gene: MedlinePlus Genetics

Is eye color determined by genetics?: MedlinePlus Genetics

TYR gene: MedlinePlus Genetics

What are single nucleotide polymorphisms (SNPs)?: MedlinePlus Genetics

Melanin - Wikipedia

Rayleigh scattering - Wikipedia

HERC2 - Wikipedia

Single-nucleotide polymorphism - Wikipedia

Creative Commons Imagery:

SNP model by David Eccles (gringer) File:Dna-SNP.svg - Wikimedia Commons Creative Commons Attribution 4.0 International license. CC BY 4.0 Deed | Attribution 4.0 International | Creative Commons

Toglenn File:Taylor Swift 2 - 2019 by Glenn Francis (cropped).jpg - Wikimedia Commons Creative Commons Attribution-Share Alike 4.0 International license. CC BY-SA 4.0 Deed | Attribution-ShareAlike 4.0 International | Creative Commons

#blueyes #genetics #ancestry

[celtichistorydecoded]

Thanks for watching! Please let me know your thoughts below...

[breakaleg]

My dad had brown eyes and was from Austria. My mum had a variant of grey and green eyes and was from Sweden. Most of their respective forebears had blue eyes. I have blue eyes and I am from Sweden, still lving there.

[marlenaamalfitano]

My husband is very southern Italian with brown haired dark eyed patents He had blond hair blue eyes and a red beard. His maternal grandfather also had a red beard.

[dr_Axita]

Thnkx for sharing such a wonderful video ❤ 👏👏💐love blue eyes 😎

[Whippy]

On my (Irish) mum’s side of the family, apart from one, no one has any colour eyes other than blue. My husband has blue eyes, as do I. Both our children have blue eyes. However, my sister has amber eyes. They are beautiful!

[ConnieAshley-be]

I had definite blue eyes into adulthood, with brown hair with a reddish tint, but my eyes began changing in my 30's - 40's. I now have a golden hazelish ring around the pupil, and a greenish-gray-blue color around the outer part of my eyes. Is it common for eye color to change like this? I'm 70 now, and they've stayed this color since my 30's/40's. lol

[clarissagafoor]

Like many Eurasians my sons were born with dark grey eyes, but of course they both now have brown eyes. My family mostly have hazel eyes, my father had grey eyes my mother dark brown.

[willhovell]

Things always more complex than we think.

[frogscotch]

yes, at school biology i was taught that a father with brown eyes, and a mother with green would result in a blue eyed child, and as that fits myself i believed it. There was a whole chart in our books showing all the variables of parents eye colours and what their childs eyes would be.
I was also singled out from my whole class, by my biology teacher, because i have no earlobes! She said that was unique and it made me feel special hehe, but my school pals just laughed at me about it lol. She said it was probably because i'm half French half Scot and as my classmates were all 100% Scottish i believed her, but now i think she just made it up to look clever!

[Gaizaz]

Both my parents, and all 4 of my grandparents had blue eyes. I of course, have blue eyes.

[shezza]

I and my paternal grandmother, father and one aunt as well as a maternal aunt have green eyes. All my other relatives have blue as well as my children and grandchildren.

[hiccuphorrendoushaddock]

There is an arabic story about a woman from the tribe of Djadis(one of the extinct arabic tribes that lived in the peninsula long before Abraham brought Ishmael to Mecca) who had blue eyes (she was one of three famous arabic women with blue eyes) and who could see far away that she would warn her people of approaching enemies three days before their arrival. However, one day the chief of another tribe heard of their wealth and went to conquer them but he ordered his men to carry trees so that she wouldn't see them, she told her people that she saw trees coming towards them, they didn't believe her and ended up being massacred.

[FurBabyMommaFureva]

I am from the USA and my father had brown eyes and my mother had blue. Both children my brother and I were born with blue eyes

[MH-tnpp]

The origin of blue eyes is 100 % known. It’s comes from one single man, that lived in a cold place like Siberia or the Caucasus mountains, a male that had a chip on his gene responsible of the production of melanin. And other genetic modification started. All people with blue eyes have all the same male ancestor, it’s supposed, and you need to have this DNA on both sides, to have a chance to gave blue eyes. This is why you can say goodbye to blues eyes when you mix with Asians or Africans, the do not carry this chipped gene, producing less melanin. Very old humaine remains with blue eyes were found in Northern Poland (Pomerania), Norway and a bit in Sweden. Google it, they is a map on the front page of a YT video.

[FairnessFobe]

I have blue eyes inherited from both of them. So does both my siblings All my extended family members has blue eyes & so does all their children.. We all inheried our eye colour from all our ancestors.
It always amazes me when i hear blue eye colour are considered so rare worldwide!.

[-_YouMayFind_-]

I am a blue eyed woman and my mother and her sister were the ones with blue eyes and their brother brown. Which confused me because my grandmother has brown eyes and grandfather blue. Yet 2 of the 3 kids get blue eyes. But our blue eyes are a bit blue, greyish and a bit of greenish 😂 and the inside is brownish

[ClaBhmz]

My son's eyes are green. His dad has brown eyes and I have green. Daughter-in-law has blue eyes. Their baby has grey (I think) or blue (everyone else thinks) eyes, but a friend told me he thinks they look grey-green. The baby has two brown-eyed grandparents, one blue, and one green. I don't know why, but I'm so fascinated by her eye color. It'll be interesting to see how they turn out. All my ancestry is from the UK and NW Europe; my son's dad is a melange, mostly European but with a flourish.

[wolfmother]

My mom had blue eyes that turned green. My dad had brown eyes, my sister blue eyes and my brother hazel eyes. I got the brown eyes that turn amber eyes. We are all 100% Irish. What say you about this notion of “black Irish” My grandparents told me I was black Irish. Does that have to do with Norse invasion or Spanish ships that sunk off the west coast of Ireland (where my family is from -Donegal) during king Louis reign. The Almada fleet that sunk I while trying to invade Queen Elizabeth in England. This always confused me. Can you clarify???? Thank you. Recently subscribed and love your content.

[NileandMonica]

Does increased estrogen in the mom increase or decrease melanin?

[PurelyCoincidental]

My mother has hazel eyes (leaning grey-green) and my father's are blue with a dark ring. My brother's eyes look just like my mother's, and I (f) have eyes just like my father's. There are NO people in my father's family with hazel eyes—it's all blue, pale blue-grey, and a few brown. My mother's sister has blue eyes, but they don't look like mine.