Blue Eyes Riddle
Both of my parents have brown eyes, as do I. My brother and my wife have blue eyes. Using the simple brown-blue model (two genes; a brown gene dominates blue gene), what are the chances of my first child having blue eyes?
Hint: Given my brother's blue eyes, what are the odds on my pair of eye-color genes?
1 in 3.
Since my brother has blue eyes (bb), both of my parents carry one brown and one blue gene (Bb). The three possibilities for my genotype, equally likely, are BB, Bb, and bB. Thus, there is a 2/3 chance that I carry a blue gene.
If I carry a blue gene, there is a 50% chance I will pass it on to my first child (and, obviously, 0% if I carry two brown genes).
Since my child will certainly get a blue gene from my wife, my gene will determine the eye color.
Multiplying the probabilities of those two independent events, there is a chance of 1/2 x 2/3 = 1/3 of my passing on a blue gene. Did you answer this riddle correctly?
YES NO
Since my brother has blue eyes (bb), both of my parents carry one brown and one blue gene (Bb). The three possibilities for my genotype, equally likely, are BB, Bb, and bB. Thus, there is a 2/3 chance that I carry a blue gene.
If I carry a blue gene, there is a 50% chance I will pass it on to my first child (and, obviously, 0% if I carry two brown genes).
Since my child will certainly get a blue gene from my wife, my gene will determine the eye color.
Multiplying the probabilities of those two independent events, there is a chance of 1/2 x 2/3 = 1/3 of my passing on a blue gene. Did you answer this riddle correctly?
YES NO
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I am a fruit thats red
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Im bought in a punnet
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At times they are green; at times they are brown,
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tells it not.
Whoever takes it,
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And whoever knows it,
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I have a mirror but I'm not a car
I'm where things get brushed but Im not a horse stable
I can get steamy but I'm not a sauna
I'm part of the house but I'm not a bedroom
I have a sink but Im not a kitchen
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I can get steamy but I'm not a sauna
I'm part of the house but I'm not a bedroom
I have a sink but Im not a kitchen
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This is an area in the house
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There is a tub and / or a shower
Where you hopefully wash every day
With a toilet and sometimes a bidet
There is a tub and / or a shower
Where you hopefully wash every day
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This is a part of your house
Whose name contains three vowels
It often has a tub, sink and some towels
Whose name contains three vowels
It often has a tub, sink and some towels
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