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#1




mucopolysaccharidosis Type II & genetics
Hunter syndrome, or mucopolysaccharidosis Type II, is a rare disease that it shows Xlinked recessive inheritance. In a female with 2 brothers with the diasese, which of the following is correct?
a) The probability that she is a carrier is 2/3. b) If she is a carrier then the probability that each of her sons will be affected is 1 in 4. c) If she is a carrier then the probability that each of her daughters will be a carrier is 1 in 4. d) Before any carrier testing is carried out the woman can be correctly informed that the probability that her first son will be affected is 1 in 4. 
#2




no idea which one is the right answer...
the probability that her son will be affected is 1 in 2 the probability that her daughter will be carrier is 1 in 2 
#3




Im stuck between A) and C)
What's with the recent flux of genetics questions? 


#4




Pls keep genetic calculation coming, the more the better!

#5




a) The probability that she is a carrier is 2/3.should be 1/2
b) If she is a carrier then the probability that each of her sons will be affected is 1 in 4.if she's a carrier, Xx, then son will be 1/2 chance to have dz c) If she is a carrier then the probability that each of her daughters will be a carrier is 1 in 4.daughter would be 1/2 carrier d) Before any carrier testing is carried out the woman can be correctly informed that the probability that her first son will be affected is 1 in 4.this one is right. possibility to be a carrier 1/2, transfer the bad one to don is 1/2, so 1/2*1/2=1/4 
#6




Quote:

The above post was thanked by:  
leo lakhani (05302011) 
Tags 
Biochemistry, Genetics, SyndromesAcronyms 
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