I already understand the brown dominant, blue recessive gene concept, and that brown eyed people who carry a blue recessive gene can have a child with blue eyes, but what I need to know is how many generations can a blue eyed recessive gene stay in a family?
Example- Baby has blue eyes (for 1year, assuming they'll stay blue) Mom and Dad both have brown eyes. Dad's parents both have brown eyes, as do 3 of 4 grandparents (babies great grandma has blue eyes) Mom's parents both have brown eyes, but mom's grandparents are unknown.
SO Can a blue eyed gene from your paternal grandmother, and only your paternal grandmother, cause you to have blue eyes? Or are the babies' blues because Mom's ex boyfriend has beautiful sky blue eyes?
Or in ex.2, if baby has blue eyes, mom and dad have brown eyes, and dad's parents had brown eyes, but one of mom's parents had blue eyes, could one grandparent with blue eyes cause you to have blue eyes?
What's the least it would take to have a blue eyed baby?
2007-02-03
11:53:52
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20 answers
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asked by
xxxmiekaxxx
1