Lasting genes?

Question

My great grandmother was red. Does it suprise people that 3 generations later, I am so very red from my great grandmother?

how many years can the traits of the genes last?

Answer 1

Great grandmother McAvoy had red hair, the only one of her family (Her mother was described as being of an olive complection, her father brown hair and brown eyes)   None of her children had red hair.  Nor their children.  But, in the next generation, a cousin of mine with brown hair, and a husband with lighter brown hair, had 4 children with very red hair.  It takes a nice combination of parents' recessive traits to bring out this kind of thing, but, yes, it happens, and can persist through the centuries.

Answer 2

forever. it really depends if the parents produce a baby that has the recessive trait. you obviously got the dominant allele. good thing because that gives you a better chance of passing that dominant allele onto your children. over time the redness could leave because it will stay recessive and yadda yadda...