inherited eye colour question

[mummy115]

i read in daily paper that if a dad has brown eyes and mum blue child will have brown as predominent brown gene.so if a dad has hazel and mum blue should all children have hazel/brown or can they have blue?any experts.my hubby hazel and me blue our children have hazel.however his children from previous blue eyed partner is one of each.....(she was sleeping around at time blue one conceived so its preying on our minds)is it possible or not?

Hi mummy115 - Both me and my DH have Brown eyes. DS1 has Blue, DS2 & DS3 both have Brown. Think Blue is quite unusual from 2 x Brown from what we have been told.

It is possible.

I have green eyes & dp has blue eyes & both our kids have blue eyes!

my dp has brown and i have blue

we have 5 children

3 brown
2 blue !! hth

Dh has brown eyes and mine are blue. Ds1 and ds2 both have blue eyes. Dd has brown eyes.

Eye colour is influenced by many genes & is very complex. I am very dark brown eyed. DP is greenish/hazel. DTDs are kind of dark blue/green. DD3 is getting darker - I think she is going to be brown (she is only 5 months at the moment).

I think the only thing you can say is that 2 blue eyed parents can't have a brown eyed child, because of the way things are inherited, but I think that brown eyed parents could theoretically have almost any colour children.

I heard a whil eback that brown was dominant but I suppose that doesn't mean that brown always wins though.

Like scooby, I'm hazelly green, dh is blue and both dds are blue.

I also know a couple who both have brown but one child has blue. The woman has at least one blue-eyed sibling so I suppose that gene has fought through.

exp is brown eyed with one blue eyed parent and one hazel eyed parent, he has 4 siblings, 2 greens, one blue and another brown like exp
I am blue eyed and come from blue eyed stock the whole way through.
Our ds is blue eyed...

so if two people had blue eyes but had one bronw eyed parent, met and had kids
they have equal meausres genetically of brown/blue each
so they could have brown eyed children surely?

we both have brown eyes but dd2 has blue

two blue-eyed grandparents (one each side) who waited two generations to see their genes get to the top of the pile

both dh and his sister have brown eyes - between them they have four children, three of them with blue eyes

from a previous thread

By tamum on Tue 01-Feb-05 22:45
I hate to say it, but although the basic genetics is fine here, the idea that eye colour is determined by a single gene and that brown eyes are dominant over blue is completely wrong. It's a myth that has been perpetuated in loads of basic biology text books and can cause all sorts of problems as we see here Eye colour has been shown to be polygenic, so it is controlled by multiple genes. This makes it impossible to predict eye colour in offspring with complete certainty. It vaguely follows the "textbook" pattern in lots of families but by no means all.

Here endeth the lesson

whole thread

Brown is dominant, but you have 2 genes which means you could have a

Mum could have brown gene + a blue gene - Brown eyes
Dad could have brown gene + blue gene - Brown eyes

If you and DP both give DC a blue gene DC will have blue eyes (25% chance).

As it is multigene it is a bit more complicated than that & I think I was told that there was a bit of sex linkages which may influence things.

I have hazel eyes, DH has blue

DD1 hazel
DD2 blue
DS1 hazel

Both my parents have brown eyes so no blue on my side at all.

It's not as simple as that. There isn't just one gene involved.

Blimey - that went quick My post was in response to piffle....

But it was clearly superfluous to requirements

I know but isn't it so very interesting
I know exp's mother was very sceptical about ds's eyes...

Me..blue,DH..hazel.
DS1..light blue
DS2..dark blue
Ds3..Brown.(and I still can't get used to it,but I adore that he looks like a doe eyed Jersy cow!)

My MIL is devastated that our children have "khaki" eyes like me, and not blue like dh and all his family stretching back forever and ever....

She always says "such a shame". I try not to take it personally....

The blue eyed child could be his. The only way to know for sure is a paternity test.

My mother - brown eyed
My father - blue eyed
2 blue-eyed, 1 brown-eyed child

the genetics of eye colour are more complicated than "brown is dominant over blue". Of course the blue eyed child could be his.

For some reason I think the blue eyed parents must have blue eyed children' isn't strictly true either. You ned tamum. She explains it well

lol becky - it's all your fault!!

Thank you so much iota, I was just thinking I must find what I said on the old threads to save writing it again

Thank you Soupy too

i too am khaki