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probability that:
a) the next 2 children will be galactosemic?
b) of the next 4 children, 1 will be galactosemic?

2007-04-19 11:51:38 · 4 answers · asked by zahara 1 in Science & Mathematics Biology

4 answers

a) 1/16
b) 1/4 (25%)

2007-04-19 11:59:40 · answer #1 · answered by inmywhit3t33 1 · 0 0

For each child, there will be a 1 in 4 chance of being galactosemic. There is no other way to correctly put the probability.

a) You could say that there is a 1/4 times 1/4 probability of having two in a row, so 1/16.
b) 1/4 of each child being galactosemic.

2007-04-19 12:03:35 · answer #2 · answered by Labsci 7 · 0 0

This page was put together by parents of a child with classic galactosemia. It is not a medical reference! It was put together as a means of getting some useful information about classic galactosemia to parents of a newly diagnosed child. Please keep this in mind as you read through this information. We hope this will provide immediate answers and alleviate some fears.

First, Congratulations on the birth of your new baby!

A very brief description of classic galactosemia

Classic galactosemia is very rare (occurs in about one in 50,000 - 60,000 births). Classic galactosemia is an inherited disorder that results in the absence of critical enzyme activity (GALT - Galactose 1 phosphate uridyltransferase). This absence of GALT activity leads to an accumulation of Galactose-1-Phosphate (Gal-1-P) in the blood. The accumulation of Gal-1-P is toxic to the body. Treatment of classic galactosemia requires adherence to a Galactose-restricted diet. The diet is to be followed for life!

Classic galactosemia is usually detected through newborn screening. While there are many very serious immediate neo-natal complications associated with classic galactosemia (such as: liver problems, kidney problems, e-coli sepsis, and eye damage), many of them can be avoided by starting the diet treatment ( i.e. soy formula) as soon as possible.

Classic galactosemia requires regular blood testing for Galactose -1- Phosphate (Gal-1-P). The target range of Gal-1-P for a classic galactosemic child is < 4 mg/100 ml RBC (RBC = red blood cell). There are differences of opinions on how often these blood tests should be performed. Check with your doctor about these blood tests. (NOTE: For newborns who have been feed breast milk or milk-based formula, it may take some


I think the answer you are looking for is B but check out this web sight

http://www.galactosemia.org/

2007-04-19 12:01:21 · answer #3 · answered by Jenn P 2 · 0 0

As you understand, the mother would desire to be Bb and the daddy is a bb. this implies that the daddy constantly contributes a blue gene and the mother has a 50 p.c. danger of contributing blue as nicely. this implies that any toddler they have has a 50/50 danger of having blue eyes. the colour that would not breed actual is green. green is the consequence of an incompletely dominant brown gene, so the parent is actual a Bb with a 'defective' B. I actual have green eyes and the daddy has brown eyes, yet my son has blue eyes. The exchange of a Bb and yet another Bb of having a blue-eyed toddler is a million in 4.

2016-12-10 06:31:17 · answer #4 · answered by ? 4 · 0 0

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