SICKLE CELL ANEMIA IS AN AUTOSOMAL RECESSIVE DISORDER THAT IMPACTS RED BLOOD CELLS AND HEMOGLOBIN. A PARENT IS HETEROZYGOUS FOR SICKLE CELL ANEMIA HAS CHILDREN WITH THEIR PARTNER WHO IS HOMOZYGOUS RECESSIVE FOR SICKLE CELL ANEMIA. 1- If the parents from the example have children, what is the expected phenotypic ratio for children with sickle cell anemia to children without it? 2-If the parents from the example have 8 children, what is the probability that 2 of them have sickle cell anemia and 6 of them do not? please answer these questions showing all the work on paper ! i repeat PAPER
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The parent who is heterozygous for sickle cell anemia has the genotype Ss, where S represents the normal allele and s represents the sickle cell allele. The partner who is homozygous recessive for sickle cell anemia has the genotype ss. Show more…
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1- Sickle cell anemia is an autosomal, recessive trait. If one parent is heterozygous (Ss) and the other is homozygous dominant (SS). What are the chances of them having a child who has sickle cell anemia? 100% 3/4 2/3 1/2 1/4 0% 2- Sickle cell anemia is an autosomal, recessive trait. If one parent is heterozygous (Ss) and the other is homozygous dominant (SS). What are the chances of them having a child who is a carrier for sickle cell anemia? 100% 3/4 2/3 1/2 1/4 0%
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Genetic disease Sickle-cell anemia is a disease that results when a person has two copies of a certain recessive gene. People with one copy of the gene are called carries. Carries do not have the disease but can pass the gene on to their children. A child born to parents who both carries has probability 0.25 of having sickle-cell anemia. A medical study samples 18 children in families where both parents are carries. a. What is the probability that four or more of the children have sickle-cell anemia? b. What is the probability that fewer than three of the children have sickle-cell anemia? c. Would it be unusual if none of the children had sickle-cell anemia?
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Sickle cell anemia is a genetic blood disorder where red blood cells lose their flexibility and assume an abnormal, rigid, sickle shape, which results in a risk of various complications. If both parents are carriers of the disease, then a child has a 25% chance of having the disease, 50% chance of being a carrier, and 25% chance of neither having the disease nor being a carrier. If two parents who are carriers of the disease have 4 children, what is the probability that: (a) 2 will have the disease? (b) 4 will have the disease? (c) at least 2 will neither have the disease nor be a carrier? (d) the first child with the disease will be child number 1 ?
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