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We have 2 mutant alleles and 24 wildtype alleles in a population (total of 26 individuals). what is the heterozygousity of this population? what is the autozygosity?

i began solving this but have no idea what to plug for the Ht-1 and some other variables, help?

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Jarrod Robel
Jarrod RobelLv2
29 Sep 2019

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Related questions

In this first exercise, we are going to look for evidence of evolutionary change in a population in the absence of natural selection by looking at the change in allele frequencies over time in a simulated population. We will start with a population of 50 individuals in which there are two alternate alleles (H and h) in equal proportions (each at a frequency of 0.5 or 50%). Individuals have the possible genotypes: HH, Hh or hh. These two alleles do not offer any selective advantage, so neither is selected for or against, meaning they are neutral. We will record the frequency of these alleles over 10 generations. Prior to advancing on to the next generation, six alleles (= three individuals) will be removed at random.

Before you begin, answer the following:

Question

What is your prediction as to what will happen to the frequencies (note that this is different than the number) of these two alleles over 10 generations? Keep in mind that there is no selective advantage of one allele over the other. Be sure to word your prediction as an “if-then” statement based on the experiment design. (1 pts).

You identify a gene that controls fin size in zebrafish and after examining many fish you realize that in the population only two alleles exist for this gene. One allele is wild type leading to normal fins, and the other allele leads to small fins. Interestingly, only homozygous dominant individuals have a normal fin size, and all other individuals have small fins. What is the most likely explanation for the single-gene interaction of the fin alleles?

a. haplosufficient

b. complete dominance

c. codominant

d. haploinsufficient

e. recessive lethal alleles

2. In a population of haploid, asexual yeast living in your left ear, a beneficial mutation (W) arises that allows mutant individuals to consume your ear wax a higher rate that those lacking the mutation. Because these yeasts are asexual and haploid, we can assume that the two alleles, W and w, represent the genotypes of the population. If the mutant genotype (W) is able to reproduce asexually at twice the rate of the non-mutant genotype (w), what is the selection coefficient of each genotype? (λW = 4 and λw = 2)

a) If the population at time t=0 is composed of 98 w individuals and 2 W individuals, calculate the following for the population at time t=1: change in genotype numbers, change in genotype frequencies and ∆q (recall: q always represents the inferior genotype).

b) Using λ of the entire population as a measure of the population's fitness, carry out the calculations you performed above for a total of 10 generations (t=10). How has λ changed between t=1 and t=10? What does this mean for the population in regards to their environment?

c) Ignoring the number of yeast cells that have died, what is the estimated size of the yeast population in your ear at time t=10?

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