Brown hair is dominant to blond hair colour. If 2 brown haired parents have one blond child, what is the probability that their second child will have brown hair?
this is biology: probability in genetics (punett squares)
well thks so much!! rlly appreciate it!
this is biology: probability in genetics (punett squares)
well thks so much!! rlly appreciate it!
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The probability of having a brown haired child would be 3:1 because the parents genes would be Bb for them to have a blonde haired child ( 1:3 probability). B= Brown b= blonde The parent's parents would have to be Bb bb or Bb Bb.
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It still stays the exact same.
It'll be a 3/4 chance of brown hair and 1/4 chance of blonde hair whether it's the 1st child, 4th child, 7th child... whatever!
And this is assuming they are both heterozygous (Bb) not homozygous dominant (BB)
It'll be a 3/4 chance of brown hair and 1/4 chance of blonde hair whether it's the 1st child, 4th child, 7th child... whatever!
And this is assuming they are both heterozygous (Bb) not homozygous dominant (BB)