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Use the following information to answer the next two questions.
Sickle cell anemia is a disease that is caused by a mutation in the gene that produces hemoglobin. Hemoglobin carries oxygen in red blood cells. The HbA allele produces normal hemoglobin and the HbS allele produces hemoglobin that sticks together and causes red blood cells to sickle. Heterozygous indivuals (HbAHbS) produce both normal and "sickle" hemoglobin so the HbA and HbS alleles are codominant. Heterozygotes do not develop sickle cell anemia and are described as having the sickle cell trait. Individuals that are homozygous for the sickle allele (HbSHbS) only produce "sickle" hemoglobin and develop sickle cell disease.
Note: Individuals that have sickle cell trait and sickle cell disease have protection against malaria so the HbS allele is higher in areas where malaria is common.
A man who is homozygous for the normal allele married a woman with the sickle cell trait. What is the expected probability of this couple having a boy with the sickle cell trait?
Record your answer as a value between 0 and 1 rounded to two decimal places.
Semisolid media such as MIO are used to determine motility. Another such medium is SIM (sulfide, indole, motility) medium. When would you use SIM instead of MIO?
Effectively presents the nature of the disease (i.e. how it arises, how it affects the normal anatomy and physiology), what are the possible treatments. How the disease is different between men and women.
A three-factor cross in Salmonella typhimurium was performed using bacteriophage P22. The cross was between an arg-leu-his- recipient bacterium and bacteriophage P22, which was grown on an arg+leu+his+ strain. 1000 arg+ transductants were selected..
A three-factor cross in Salmonella typhimurium was performed using bacteriopage P22. The cross between an arg-leu-his- recipient bacterium and bacteriophage P22, which was grown on an arg+leu+his+ strain. 1000 arg+ transductants were selected and ..
Question: What is required for a woman to display a sex-linked recessive trait? Please answer the following question.
It seems that we are nearing the point where a COVID-19 vaccine will need to be administered to the entire country.
Cancer cells divide out of control. Side effects of chemotherapy and radiation therapy that fight cancers include loss of hair
Spotting in suppies is inherited as an autosomal recessive trait. If the trait had a 25 percent reduction in expressivity. What fraction of the progeny would be spotted?
A patient with hypothyroidism presents with low T3 and T4, and elevated TSH & antibodies to thyroglobulin. The thyroid is infiltrated with lymphocytes that have replaced large part of thyroid.
What are key DNA replication differences in prokaryotes and eukaryotes?
your friend has isolated plasma membranes and reassembled the membranes into small vesicles. using fluorescently
Not much more than 100 years ago, ordinary citizens were unaware of the role of microorganisms in the cause and spread of disease. In her book, "The Gospel of Germs",
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