what fraction of the offspring of two parents with sickle trait would you expect to have sickle cell anemia? Explain how you arrived at this answer. Also include a punnet square
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what fraction of the offspring of two parents with sickle trait would you expect to have sickle cell anemia? Explain how you arrived at this answer. Also include a punnet square
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- Sickle cell anemia is an inheritable red blood cell disorder that results in sickle-shaped red blood cells. The sickle-shaped red blood cells can stick to blood vessel walls and cause a blockage or slow the movement of blood throughout the body. Individuals who are heterozygous produce both normal and sickle-shaped red blood cells which gives them resistance to malaria but they do not develop sickle cell anemia (so heterozygotes are unaffected on the pedigree).Let HbS be the allele for sickle cell anemia and let HbA be the allele for normal red blood cells. Which of the following rows provides the correct genotypes for individuals I-2, I-4, II-1, and III-1? Select one: a. I-2 I-4 II-1 III-1 HbA_ HbAHbS HbAHbS HbA_ b. I-2 I-4 II-1 III-1 HbA_ HbAHbS HbAHbS HbAHbS c. I-2 I-4 II-1 III-1 HbAHbS HbAHbS HbAHbS HbAHbS d. I-2 I-4 II-1 III-1 HbAHbA HbAHbA HbAHbA HbAHbAGiven the information regarding sickle cell anemia, if two carriers were to have children, what would be the genotypes and phenotypes of their children? Would any of the children show symptoms of the disease?Alpha thalassemia is a hereditary blood condition that results in varying levels of anemia. It is tied to the HB alpha 1 gene and the HB alpha 2 gene on human chromosome 16. The diagram shows the proteins for the hemoglobin genes and the pedigree shows genotypes, designated by the letter X, on the chromosomes for a family affected by the condition. Which represents the predicted level of anemia in a child born to the mother and father in the image with a mutation that results in a genotype of xxxx? Why? A - mild anemia because the loss of 4 genes would equal the loss of the 4 proteins needed for normal alpha hemoglobin B - severe anemia because the loss of 4 genes would equal the loss of the 4 proteins needed for normal alpha hemoglobin C - mild anemia because the addition of 4 genes would produce too many of the proteins needed for normal alpha hemoglobin D - severe anemia because the addition of 4 genes would produce too many of the proteins needed for normal alpha hemoglobin
- Mention Mendelian laws and how they fit in with sickle cell anaemia Are there any advantages to having sickle cell anaemia?1. What are the symptoms of sickle cell disease (anemia)? 2. What is the genotype of sickle cell disease? Use these sources to find the answers: https://ghr.nlm.nih.gov/condition/sickle-cell-disease#inheritance https://www.cdc.gov/ncbddd/sicklecell/traits.htmlSickle cell anemia follows a single-gene pattern of inheritance, with two alleles: one allele (S) produces normal hemoglobin, and the other (s) produces abnormal hemoglobin. Describe the phenotype outcome for each of the three possible genotypes (SS, Ss and ss), with regard to sickle cell anemia and malaria.
- What is the frequency of sickle cell disease (anemia)? https://ghr.nlm.nih.gov/condition/sickle-cell-disease#inheritance https://www.cdc.gov/ncbddd/sicklecell/traits.htmlinterpret using the punnett square below to both sets of parents (Parents A , Parents B, & Parents C).based on your results of filling in the boxes. What are the chances Parents A, Parents B, and Parents C will have a child with Sickle Cell? What are the chances the child will be a carrier for Sickle Cell?Sickle anemia is a favorable mutation. There is only one amino acid different in sickle haemoglobin (S) as compared with normal haemogloblin (A). Persons with sickle cell trait (AS) are able to survive in malarious areas. A couple each having sickle cell trait have five children. What is the probability that they will have a child with sickle disease?
- In a region of Africa, where malaria is prevalent, 40% of the population are found to have sickle-cell anemia. The disease is caused by an abnormal hemoglobin that is found in both homozygotes (S2S2) and heterozygotes (S1S2). Many homozygotes (S2S2) suffer from anemia and often die. Heterozygotes (S1S2) incur a much less debilitating malady called "sickling trait". Approximately 3% of the people with abnormal hemoglobin are homozygotes (1.2\% of the entire population). The fitness of the S2S2 homozygotes is only 1/4 that of the heterozygotes. Where malaria is prevalent, heterozygotes exhibit overdominance with respect to fitness. How would you calculate relative fitness of the S1S1 homozygotes if you're assuming the population is at an equilibrium frequency for S2?Explain why it is not possible for two parents, one with type AB blood and the other with type O blood, to have a child with type O blood.What is sickle cell anemia? What is the true inheritance pattern? How did scientists discover the true inheritance pattern?