BABIES

[ButtonNO1]

I HAVE ALWAYS WONDERED IF YOU HAVE CF AND THEN HAVE A BABY DOES THE BABY GET IT AS WELL IT IS SOMETHING THAT I HAVE BEEN THINKING ABOUT FOR AGES

 

[anonymous]

I am not completely sure, but I think you would have a 25% chance of the baby having CF.

 

[NoDayButToday]

It depends on whether your partner carries the CF gene or not. If they do, it is a 50% chance of the baby having CF. If not, it's a 25% chance.

 

[anonymous]

Coll, you are half right - here the correct statistics

If both parents have CF: all children will have CF (100% chance)
The CF parent will always give an unhealthy CF gene
We get 1 gene from each parent. Both parents give an unhealthy gene and and child gets 2 cf genes.

If 1 parent has cf and 1 parent is a carrier: %50 odds of CF
The CF parent will always give an unhealthy CF gene
The CF carrier will give EITHER an unhealthy CF gene OR a healthy gene
1 gene from each parents gives only 2 possible combinations: 2 unhealthy gene = CF OR 1 unhealthy gene +1 healthy gene = No CF

If 1 parent has cf and 1 parent is NOT a carrier: 0% chance of having CF
Regardless of the fact that the CF parent always gives an unhealthy CF gene, the NonCarrier Non CF parent will give a healthy gene
Because the healthy gene is dominant (overpowers the recessive CF gene) no children will have CF. They will however ALL be carriers of the unhealthy CF gene.

 

[NoDayButToday]

Yep, you're right. My mistake <img src="i/expressions/face-icon-small-smile.gif" border="0">