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Sickle Cell Anemia is an autosomal recessive trait. This means that in order for the trait to be shown, both parents of an individual must carry at least one sickle cell gene. A child with this disorder can be born to parents who do not have the disorder because the parents must have at least one gene, but do not have two and therefore do not show the trait. Since it is recessive, in order to show the trait, you must have two of the genes.

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Q: How can a child have sickle cell disease when their parents do not?
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Related questions

Can sickle cell be known before birth?

Yes! If both parents have the sickle cell disease, the child will have sickle cell. Otherwise, you can Google it or bing it to see other ways.


A child has sickle-cell disease (ss) but neither parent is ill What must be true of her parents genotypes?

The parents are both recessive (Ss) for sickle cell anemia.


If a child has sickle-cell disease (ss) but neither parent is ill. What must be true of he parents' genotypes?

The parents are both recessive (Ss) for sickle cell anemia.


A child has sickle-cell disease (ss) but neither parent is ill. What must be true of her parents and rsquo genotypes?

The parents are both recessive (Ss) for sickle cell anemia.


If the father has sickle cell trait and the mother doesnt will their children have sickle cell trait?

No. The trait that causes sickle cell anemia is a recessive trait, which means that if both parents have the trait, there is a 1/4 chance their child will have it. The child can be a carrier however and not display symptoms, but there is no way for a child to get sickle cell from parents that don't have the gene.


Is sickle cell anemia an deficiency disease?

The sickle cell anaemia is not a deficiency disease. It is a hereditary disease caused by defective gene in both the parents.


How do you differentiate sickle cell trait from sickle cell disease?

Sickle cell disease is a chronic illness that comes from two parents who have sickle cell trait. This disease can be passed on if both parents have a sickle cell trait & gives that child each trait. The sickle cell trait is important because one must know if he/she is a carrier. If you carry this trait, most likely you will not be sick. It is only when you have children that knowing if you carry the trait is vital. Your child could be born with a painful, chronic, underexposed illness that will require that you have more knowledge than most doctors. Arm yourself with knowledge & get ready for a long fight for justice.


How is sickle cell anemia iherited?

Recessively, that means that both parents must be symptomless carriers then there is only a 1 in 4 chance that a given child will be born with the disease. Note: symptomless carriers have the strong advantage of being much more likely to survive malaria than "normals". Sickle cell disease is inherited through a single pair of genes (one gene from each parent), on chromosome 11. They must receive the gene from both parents in order to actually get sickle cell disease. If they receive one gene for sickle cell disease from one parent but a normal gene from another, they have "sickle cell trait." The genes that involve sickle cell control the production of hemoglobin (a protein) in red blood cells. Abnormal hemoglobin from sickle cell disease causes red blood cells to grow incorrectly. Persons with sickle cell trait are much more resistant to malaria (a common disease in Africa, where the gene originated) than persons having two normal genes. This makes the sickle cell gene very likely to persist in areas where malaria is endemic, like Africa.


Can child be born with sickle cell if one parent is sickle cell carrier and another is normal?

A child has to receive the gene from both parents to heve sickle cell anemia. if only one parent passes on the gene, then the child will have sickle cell trait, but no symptoms of sickle cell anemia.


Can you spread sickle cell?

Sickle cell is not a germ, it's a disease! The spreading of this disease occurs when two people carry the trait of sickle cell in their genetic makeup and they have children. The odds of any child born to parents who carry the trait are different each time. 50% can be born with just trait, 1 out of 4 will be born with Sickle Cell Anemia and 1 out of 4 will be born without anything. Then there are varied levels of Sickle Cell, there's Anemia (SS), Disease (SC). it is heredity


Explain how 2 parents neither of whom have sickle cell could have a child with sickle cell?

Both were carriers.


If Natasha has normal blood cell but marries someone who has sickle cell trace What are the chances of them having a child with sickle cell?

If a person does not carry the Sickle cell trait and they marry some one with the trait. The child that comes from that relationship can never have sickle cell disease, however that child has a chance of having the sickle trait.