Read part II of your peer's response. Please comment on their idea and state what you...
Read part II of your peer's response. Please comment on their idea and state what you learned from it and make any suggestions that you feel is necessary.
Peer Response:
Sickle Cell Trait (SCT) are the heterozygous genes one with the HbSS Sickle cell anemia gene and one HbAA normal hemoglobin gene. The disadvantages to being SCT is that is rare cases you can have health problems but more importantly you are a carrier of the gene and you would not want have children born with sickle cell anemia. There are also advantages for those who live in areas with malaria. Those who are "normal" live healthy lives but if infected with malaria usually die without extreme medical care. Those who have two sickle genes are born with sickle cell anemia and do not live long and usually do not reproduce. SCT individuals carry one sickle gene but do not die young, they also have a 60% increased mortality rate over "normal" people infected. So in areas where there is a lot of malaria this is an advantageous trait.
The first American case of sickle cell anemia was in 1910 but it was reported as early as the 1870's in Africa. As mentioned above thi SCT trait is advantageous where there is malaria as in Africa. It was known as "children who come and go" disease in africa at that time because it killed so many babies and children. Geneticists have found that the gene goes back 4 mutations, 3 in Africa and 1 in India. It has a 60% mortality rate over those who don't have one genes so it developed from 3,000-6,000 generations ago and so it has been slowly increasing in frequency in the area.
Homework Answers
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Read part II of your peer's response. Please comment on their
idea and state what you...
- What is the likelihood that two individual who are both heterozygous for the sickle-cell allele...
- What is the likelihood that two individual who are both heterozygous for the sickle-cell allele will have offspring with Sickle-Cell Anemia? 0% 25% 50% 75% - An individual who is heterozygous for the sickle-cell allele is said to have: Sickle-Cell Anemia Sickle-Cell Disease Sickle-Cell Trait Malaria - The sickle-cell allele is an example of: a chromosomal mutation a point mutation recombination genetic drift - Which of the following piece of evidence supports Anthony Allison’s hypothesis that there is a...
5. Sickle-cell disease is an interesting genetic disease. Normal homozygous individuals (SS) have normal blood cells...
5. Sickle-cell disease is an interesting genetic disease. Normal homozygous individuals (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals become very ill from the parasite and many die. Individuals homozygous for the sickle-cell trait (ss) have red blood cells that readily collapse when deoxygenated. Although malaria cannot grow in these red blood cells, individuals often die because of the genetic defect. However, individuals with the heterozygous condition (Ss) have some...
Use the following information to answer the next two questions. Sickle cell anemia is a disease...
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 haemoglobin. Hemoglobin carries oxygen in red blood cells. The HbA allele produces normal hemoglobin and the HbS allele produces haemoglobin that sticks together and causes red blood cells to sickle. Heterozygous individuals (HbAHbS) produce both normal and "sickle" hemoglobin so the HbA and HbS alleles are codominant. Heterozygotes do not develop sickle cell...
blood disease that is extremely severe It is particularly common in 11. (4 points) Sickle-cell anemia...
blood disease that is extremely severe It is particularly common in 11. (4 points) Sickle-cell anemia is a hereditary chronic bl when an individual carries two copies of the defective gene countries plagued by malaria, a parasitic infection transmitt tested 543 children for the sickle-cell gene and also for malaria. 136 children with the sickle-cell gene, 36 children had severe n consisted of 407 children without the sickle-cell gene, infections. A 99% confidence interval for p-p , the difference in...
Answer 10.9 would predict if the two traits were independent (0.03). Therefore,T than ve and blue...
Answer 10.9
would predict if the two traits were independent (0.03). Therefore,T than ve and blue eye pigmentation in dalmatians are not independent; they at color is a well-known genetic trait. The lack of independence suggests two graphical re ological interpretations: Hearing impairment may also be genetically l hu pigmentation may, in some indirect way, render the dogs more susceptible to hes dogs (microbial infections are known to sometimes cause hearing loss); or the If you have co calculated from...
In a hypothetical population which is in Hardy Weinberg equilibrium, the frequency for a recessive allele...
In a hypothetical population which is in Hardy Weinberg equilibrium, the frequency for a recessive allele is 30%. What percentage of the population would be expected to show the dominant trait in the next generation? Humans who are born homozygous for the recessive sickle cell allele die of sickle cell anemia, while those who are heterozygous are resistant to malaria (see chapter 4 for more information on this balanced polymorphism). 4% of the population of the Congo are homozygous recessive for...
Read the following scenario to answer the following question. Malaria is a disease caused by parasitic...
Read the following scenario to answer the following question. Malaria is a disease caused by parasitic protists in the genus Plasmodium. The parasite is transmitted to humans by female Anopheles mosquitoes. The Plasmodium parasite feeds on human red blood cells, eventually destroying them. Humans infected with malaria can exhibit many symptoms. Depending on the severity of the infection, these can range from fever, chills, sweating, and headaches to anemia and kidney failure. Ultimately, malaria can result in death. However, if...
My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your...
My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your study sample 2. How have you selected your sample? 3. How will you select your sample population and give the rationale behind your decision Please type the solution on the keyboard so that I can copy and paste Q. No 1. Answer : Sickle cell disease : It is defined as it is a chronic heriditory form of Anemia, in which the red blood...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele,...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele, S, severely reduces fitness in people who are homozygotes, SS. In contrast, people with at least one normal hemoglobin allele, A, do not suffer the effects of sickle cell anemia, even if the individual is a heterozygote, AS. Interestingly, though, in areas with a high rate of malaria, heterozygotes that carry the sickle cell allele have a higher fitness than do individuals that are...
I posted this question before but no answer I need to submit in 4 hours, please...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
blood disease that is extremely severe It is particularly common in 11. (4 points) Sickle-cell anemia is a hereditary chronic bl when an individual carries two copies of the defective gene countries plagued by malaria, a parasitic infection transmitt tested 543 children for the sickle-cell gene and also for malaria. 136 children with the sickle-cell gene, 36 children had severe n consisted of 407 children without the sickle-cell gene, infections. A 99% confidence interval for p-p , the difference in...
Answer 10.9
would predict if the two traits were independent (0.03). Therefore,T than ve and blue eye pigmentation in dalmatians are not independent; they at color is a well-known genetic trait. The lack of independence suggests two graphical re ological interpretations: Hearing impairment may also be genetically l hu pigmentation may, in some indirect way, render the dogs more susceptible to hes dogs (microbial infections are known to sometimes cause hearing loss); or the If you have co calculated from...
Read the following scenario to answer the following question. Malaria is a disease caused by parasitic protists in the genus Plasmodium. The parasite is transmitted to humans by female Anopheles mosquitoes. The Plasmodium parasite feeds on human red blood cells, eventually destroying them. Humans infected with malaria can exhibit many symptoms. Depending on the severity of the infection, these can range from fever, chills, sweating, and headaches to anemia and kidney failure. Ultimately, malaria can result in death. However, if...
A mutation in one of the hemoglobin genes causes sickle cell anemia. The sickle cell allele, S, severely reduces fitness in people who are homozygotes, SS. In contrast, people with at least one normal hemoglobin allele, A, do not suffer the effects of sickle cell anemia, even if the individual is a heterozygote, AS. Interestingly, though, in areas with a high rate of malaria, heterozygotes that carry the sickle cell allele have a higher fitness than do individuals that are...
I posted this question before but no answer I need to submit in
4 hours, please help.
Although the following scenario is hypothetical, it is based on actual facts. Sickle cell anemia is an inherited form of anemia. Those with sickle cell anemia do not have enough healthy red blood cells to adequately carry oxygen to all the cells in their body. Normal red blood cells are flexible and round, and can easily move through the blood vessels. However, in...
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