genetics question: recessive genes

jman0

I've got a question about genetics.
Let's say 2 people that both have red hair (recessive gene) have a child.
Would that child likely have red hair too?
What is the equation?

DrIndy

correct me here folks....

Red hair is mendellian recessive - therefore 2 red haired parents carry two recessive genes each therefore every child would be red haired?

Vorsprung

Sounds right...

Always thought my 1,000th post would be more profound. Ah well.

Faith

DrIndy wrote: »

correct me here folks....

Red hair is mendellian recessive - therefore 2 red haired parents carry two recessive genes each therefore every child would be red haired?

If b= the gene for red hair, then a person with red hair would be bb.

bb x bb

Well, I can't draw the diagram here, but yeah, all their kids should have red hair. That's it at its most basic, not factoring in mutations and stuff.

Bottle_of_Smoke

My dad has kind of auburn hair & his brother had 4 kids who all have red hair.
All my other cousins on that side have brown hair.
Everyone has blue eyes
I have dark brown hair but the beard goes ginger after a few days(same with my uncles on my mums side). Everyone on my mums side has brown hair.

If I was to have a child with a brunette what are the chances o them being ginger? or just to be safe should I only consider parenthood with Asians/Africans(joke)

Chunky Monkey

I'm half Irish-half Mauritian. My little brother is quite dark (he's pass off as Indian) and has very dark hair yet he has one strand of ginger hair. It's weird.