Is it unusual for everyone in your immediate family to have the same hair colour?

[crookedking]

this thread made me laugh.

[JRY-GSTQ]

umm.... Mendelian Genetics tells us that all things being equal, you have a 50% chance of being the dominant gene of any combination, so if both your parents have a certain hair colour as a dominant gene, then you have a somewhat better than 50% chance of inheriting the same hair colour. At least that what I remember from oh so many years ago... Someone can correct me if I'm wrong, or if the conversation has drifted again......

GSTQ

[crookedking]

Originally Posted by JRY-GSTQ

umm.... Mendelian Genetics tells us that all things being equal, you have a 50% chance of being the dominant gene of any combination, so if both your parents have a certain hair colour as a dominant gene, then you have a somewhat better than 50% chance of inheriting the same hair colour. At least that what I remember from oh so many years ago... Someone can correct me if I'm wrong, or if the conversation has drifted again......

GSTQ

that was the best first post i've seen in a looooong Time.

[mapleleaf4ever]

^ lol I so wasn't expecting to see him on here.

[JRY-GSTQ]

I am random, aren't I.... Muwahahaha.... Just had to make my presence known. What's the fun if you can't try and squash a few bugs every now and then.

Tirrah!
JRY&c.

[Joanne]

Originally Posted by JRY-GSTQ

umm.... Mendelian Genetics tells us that all things being equal, you have a 50% chance of being the dominant gene of any combination, so if both your parents have a certain hair colour as a dominant gene, then you have a somewhat better than 50% chance of inheriting the same hair colour. At least that what I remember from oh so many years ago... Someone can correct me if I'm wrong, or if the conversation has drifted again......

GSTQ

unfortunately, mendelian genetics does not account for most patterns of inheritance.

what a person physically looks like is also dependent on other genes as well as the environment.

for example, some things are the product of more than two alleles, which accounts for multiple-allele inheritance. an example of this would be your blood type.

then, there are more traits that are more complex, involving a combination of genes and sometimes the environment. this includes things like skin, hair, height, weight and eye colour. this is why sometimes, you may see a dark skinned parent with a light skinned parent, who may end up with a child who's somewhere in between, but again, environmental factors, such as how much sun the kid can affect his skin colour.

--Joanne :P

[Prissypants]

It totally isn't...if you're the children of the corn....

[Dj Franco]

Un Ban Wum already

[JRY-GSTQ]

Originally Posted by bananasinpjs

unfortunately, mendelian genetics does not account for most patterns of inheritance.

what a person physically looks like is also dependent on other genes as well as the environment.

--Joanne :P

I was wondering who would bring up Nature Vs. Nurture....
Regards,
JRY

[Joanne]

Originally Posted by JRY-GSTQ

I was wondering who would bring up Nature Vs. Nurture....
Regards,
JRY

hmm, it's not so much nature vs. nurture, as much as it is a fact. :P