In a population of 1000 individuals, 180 have kinky hair, 360 have wavy hairy, and the rest have straight hair. Let us assume that hair type is governed by a pair of alleles, and there are two types of alleles, S (kinky) and s (straight), with the heterozygote condition being wavy. Compute for the allelic frequencies for hair type in the population. Albinism is a rare genetic condition, occurring in only one in every 17,000 to 22,000 individuals in the world (Campbell et al. 2003; Gronskov et al. 2007). a. What happens to an individual who is albino (aa) or who has very low or lacks melanin pigments in the hair, skin and eyes?

In a population of 1000 individuals, 180 have kinky hair, 360 have wavy hairy, and the rest have straight hair. Let us assume that hair type is governed by a pair of alleles, and there are two types of alleles, S (kinky) and s (straight), with the heterozygote condition being wavy. Compute for the allelic frequencies for hair type in the population. Albinism is a rare genetic condition, occurring in only one in every 17,000 to 22,000 individuals in the world (Campbell et al. 2003; Gronskov et al. 2007). a. What happens to an individual who is albino (aa) or who has very low or lacks melanin pigments in the hair, skin and eyes?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 12QP

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In a population of 1000 individuals, 180 have kinky hair, 360 have wavy hairy, and the rest have straight hair. Let us assume that hair type is governed by a pair of alleles, and there are two types of alleles, S (kinky) and s (straight), with the heterozygote condition being wavy. Compute for the allelic frequencies for hair type in the population.
If a trait determined by autosomal recessive allele occurs at a frequency of 0.25 in a population, what are the allelic frequencies? Assume Hardy-Weinberg equilibrium and use A and a to symbolize the dominant and recessive alleles, respectively. Show calculation.
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Assuming there are only two alleles at a given locus, if the frequency of one allele is 0.3, what is the frequency of the other allele?
Using the observed counts for each genotype, how do you find the expected values with those numbers and the frequencies?
In the genetics unit you learned that sickle cell anemia is an autosomal recessive condition. In 2016, assume in the City of Markham there are 1000 people out of 300000 people who have sickle cell anemia. Assume global warming continues for the next 50 years and in the year 2066 there are 20000 people out of 500000 in Markham who have sickle cell anemia. a)What are the allele frequencies in 2016? What are the allele frequencies in 2066? Is microevolution evident? b)Due to global warming, assume the numbers of malaria carrying mosquitoes in Markham dramatically increased between 2016 and 2066. What do you believe is the main cause of the microevolution in Markham? (Hint- refer to the 5 factors affecting microevolution and refer back…
It has been hypothesized that people who are heterozygous for the allele that causes the deadly genetic condition cystic fibrosis (which, among other symptoms, reduces fertility) are more resistant to the deadly disease tuberculosis. Question - if the cystic fibrosis allel protects against tuberculosis the same what the sickle cell allele protects against malaria, then which of the following should be true in comparison between regions with or with out TB. -cystic fibrosis deaths should be more common in regions with tb - CYSTIic fibrosis deaths should be less common in regions with tb - CYSTIic fibrosis deaths should be equally common in regions with tb -Regional differences in the cystic fibrosis death rate should be purly random and upredictable.
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at what allelic frequency is the heterozygous genotype twice as frequent as the homozygous genotype in a population when in Hardy-Weinberg equilibrium?
If 83% of the Elmo Muppet population has a condition that makes them refer to themselves in the third person, and you know that this condition is the result of the homozygous recessive genotype (ee)… Assuming Hardy-Weinberg equilibrium, what is the allelic frequency of the dominant allele (E)? ______ Assuming Hardy-Weinberg equilibrium, what percent of the phenotypically normal population of are carriers of the recessive allele? ________ (NOTE this is asking for # that carry the allele/total "normal" population) In your answer, clearly answer with a number for both 1) and 2). Show calculations.
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