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in a village where hte proportion of individuals who are susceptible to malaria (genotype hbA/hbA) is 0.53 and hte population is asssumed to be at hardy weingberg equalibrium what is the expected freqency of the HbS alle? hint what is the genotype of people with sickle cell disease and how is that genotype represneted in the hardy weinberg equation
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- The following graphs illustrate the incidence of pertussis (whooping cough) cases in the United States. The first graph organizes the data by year from 1922 to 2012, with the inset showing The following graphs illustrate the incidence of pertussis (whooping cough) cases in the United States. The first graph organizes the data by year from 1922 to 2012, with the inset showing a. Describe what the first graph shows. What do each of the axes represent? What does any point on the line show? What general trend is seen, if all the data shown in the graph are considered? b. Why do you think there was an increase in cases of pertussis in the first decade of the twenty-first century? c. Describe what the second graph shows. What do each of the axes represent? What does any point on each of the different lines show? What general trend is seen, if all the lines are considered? What differs among the lines? d. Compare the incidence of pertussis cases in children under 1 year old and people over the age…The SIR model for the spread of an infectious disease is used to predict the spread of a disease in a community. The variables are: S: Number of susceptible people, who are currently healthy but could get the disease I: Number f=of infected people Put S horizontally and I vertically. They are related by the following equations. S'=-0.0005SI I'=0.0005SI-0.05I What are the S-nullclines and the I-nullclines?Mouse Infection A model for the spread of an infectious dis- ease among mice is NP = rN - ar(a + b + v) dt b + y, where N is the size of the population of mice, a is the mortal- ity rate due to infection, b is the mortality rate due to natural causes for infected mice, B is a transmission coefficient for the rate that infected mice infect susceptible mice, v is the rate the mice recover from infection, and y is the rate that mice lose immunity. Show that the solution to this equation, with the initial condition N(0) =(a + b + v)/B, can be written as (a + b + v), 2{(R – a)e" + a], BR N(t) = where R = a - (1+, b + y
- 10:36 PM ...0.2KB/s A O & 14 35 (IUII LUILIVII) LUI CUILIVIT by Chegg There are solutions for 279 problems: CH15 2RQ Explain the influence of natural selection on a. the virulence of tuberculosis. b. bacterial resistance to antibiotics. c. the changing degree of genetic diversity in an HIV population during infection. Step-by-step solution: We don't have a solution to this problem yet. Select a different problem. Back to top See solutionsIn a population where the proportion of individuals who are suspects to malaria (genotype HbA/HbA) is 0.31, and the population is assumed to be at Hardy Weinberg equilibrium what proportion of the population should be heterozygous HbA/HbS?The Boston Globe reported last week that the Boston suburb of Chelsea, with 315 reported cases, had the highest per capita COVID-19 infection rate in Massachusetts at 79 infected per 10,000. (“Chelsea, city of the working Latino immigrant, emerges as a COVID-19 hotspot”). Using this per capita rate, find the total population of Chelsea.
- The above data are from a landmark student looking into the relationship between sickle cell anemia and malaria. These data are from a population where malaria is prevalent. A is the allele for normal red blood cells; S is the sickle cell allele (you should know what this means). Is this population in H-W equilibrium? Make sure to use chi-square. Why or why not (if not, what assumption(s) violated). Genotype AA AS SS Total Observed 9365 (75.6%) 2993 (24.2%) 29 (0.2%) 12,387The equation for R0 of a pathogen transmitted by density-dependent mode of transmission is: R0 = β S/ y Calculate R0 for a system witH β = 0.002, S = 500, and y = 0.2. Additionally, derive the expression for the Threshold Density of susceptibles and calculate its value given the parameter values above. Please show steps.Compare the 95% confidence interval for the difference between two true means with the 95% confidence interval for an individual true kean. Describe one way in which these two equations are similar and state four ways in which these equations differ.
- An allele of the G6PD gene acts in a recessive manner to cause sensitivity to fava beans, resulting in ahemolytic reaction (lysis of red blood cells) afteringestion of the beans. The same allele also confersdominant resistance to malaria. The heterozygote hasan advantage in a region where malaria is prevalent.Will the equilibrium frequency (qe) be the same foran African and a North American country? Whatfactors affect qe?Assume that in a Hardy-Weinberg population, 9% of the individuals are of the homozygous Tecessive phenotyne. What percentage of the individuals would be expected to be heterozygous? What percentage homozygous dominent?Despite their excellent hygienic practices, the Kelatavicla lab experiences a devastating bacterial infection in their mouse population in 2012. Given the conditions in column B, predict what will happen to the frequency of the R allele over the years (increase, decrease, or remain the same) if the outbreak is not contained?