HEREDITY
LINKED GENES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 out of 4
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2 out of 4
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3 out of 4
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All of their children will have sickle cell.
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No chance.
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Detailed explanation-1: -How Sickle Cell Trait is Inherited. If both parents have SCT, there is a 50% (or 1 in 2) chance that any child of theirs also will have SCT, if the child inherits the sickle cell gene from one of the parents. Such children will not have symptoms of SCD, but they can pass SCT on to their children.
Detailed explanation-2: -If one parent has sickle cell trait (HbAS) and the other has sickle cell anaemia (HbSS) there is a one in two(50%) chance that any given child will get sickle cell trait and a one in two chance that any given child will get sickle cell anaemia.
Detailed explanation-3: -1 in 2 chance each child they have will just inherit a copy of the sickle cell gene from 1 parent and be a carrier. 1 in 4 chance each child they have will inherit copies of the sickle cell gene from both parents and will be born with sickle cell disease.
Detailed explanation-4: -Sickle Cell Trait (or Sickle Trait) A person who has sickle trait can pass it on to their children. If one parent has sickle cell trait and the other parent has the normal type of hemoglobin, there is a 50% (1 in 2) chance with EACH pregnancy that the baby will be born with sickle cell trait.
Detailed explanation-5: -In the United States SCD affects approximately 100, 000 Americans. SCD occurs among about 1 out of every 365 Black or African-American births. SCD occurs among about 1 out of every 16, 300 Hispanic-American births. About 1 in 13 Black or African-American babies is born with sickle cell trait (SCT).