0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
what if the father has sickle trait, does that mean the baby will have it?
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.
How can a child have sickle cell disease when their parents do not?
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.
What does carrier mean in science terms?
A carrier is an organism that inherits a specific genetic trait but does not show the trait in their phenotype, or physical appearance.
What would happen to a baby in the womb if the mother has sickle cell disease and the father has the sickle cell trait?
If both parents are trait carriers the chances of them having a child WITH sickle cell is 4 to 1. Probability says, 1 will not carry the trait OR have sickle cell, 2 will be trait carriers and 1 will have it. But Keep in mind that every time you have a child its like rolling dice. I have heard of people where all four kids have the disease. and i have 2 children with the disease and 1 that's normal.
Is sickle cell anemia congenital?
Sickle-cell is inherited from parents just as physical traits. People with the disease are SS type and show the anemia. Others can carry the trait (Ss). They are able to fight off malaria. Since this type (Ss) is important in areas with many malaria cases, this is protective.
Can Italians get sicle cell?
Although some ethnicities are more prone to getting diseases than others, none are immune to them. Sickle cell disease is hereditary, meaning that if a parent has the gene for sickle cell disease, then it can be passed to the child, who may either have it, or become a "carrier" (someone who has the gene, but traits of SCD do not show up). So, YES, Italians can get sickle cell disease. Written by a high school freshman (yeah, we're not that dumb)
How do you show a female without a trait in a pedigree chart?
A normally colored circle. As a carrier of the trait, they are usually half-colored.
Is Sickle cell anemia inherited?
This is inherited on the X chromoseome and is recessive. This means a female (who has XX chromosome pair) can only express the disease if she carries the trait on both chromosomes. This is because of the recessive nature of the gene. A male can only inherit the disease from his mother. This is he must have obtained his Y chromosome from his father so he obtains the X chromosome from his mother. A male cannot carry the gene without expressing it as he doesnt have another X chromosome to supress the recessive gene. ^ This answer is biologically incorrect because Sickle cell Anemia is actually autosomal recessive, not sex-linked recessive; this means that males and females are affected equally and it is NOT carried on the X chromosome. In order for the trait to show up in an individual, BOTH parents must be carriers of the disease (at least 1 sickle cell gene must be present).
Would a karyotype reveal the presence of a sickle-cell disease?
No a karyotype would not reveal the presence of sickle cell because karyotypes are pictures of all of your chromosomes, so it could show the presence of Down syndrome, but not sickle cell disease.
A carrier of a genetic disorder who does not show symptoms is most likely to be to transmit it to offspring?
A carrier of a genetic disorder who does not show symptoms is most likely to be heterozygous for the trait and able to transmit it to his offspring. The term heterozygous refers to a pair of gene with one dominant trait and one recessive trait.
Does sickle cell appear at birth or later on in life?
It is evident as soon as you are born if you have it.
Could males be a carrier of a specific gene and not show traits?
Yes. It is possible for a male to carry a gene and not show it. However, it would have to be a recessive gene, therefore the trait would not show physically. Though, if it is a sex-linked gene, they would either show the trait or not. They cannot be carriers and not show it.
