Auto Map means that it is a non-sex-linked disorder: men and women have an equal chance of inheriting it from their parents. This is because it is not abnormal gene on the chromosome that the sex of the child is determined.
Recessive means that both your parents are carriers of the defective gene must be: you only get sick if you inherit the defective gene from both your parents (homozygous). If you are a carrier of a defective gene (heterozygous) then you are not sick and you will not get sickle cell disease. But you can do this defective gene on to your own children.
If you have a child with sickle cell disease?
Only if both you and your partner are both carriers of sickle cell, you have a child with sickle cell disease. The chance of that is 25% (1 in 4) with each pregnancy. The chance that your child does not have sickle cell disease and no carrier is 25%.
If you have sickle cell disease itself (and thus have two defective genes) and your partner is a carrier (with a defective gene), then there is a chance of 50% to get. having a child with sickle cell disease
Article Shared by John Barban the author of Venus Factor Review