Lab 09: Population Genetics Study

Lab 09: Population Genetics Study
Intro:
A universe is a group of individuals from a single species that can hybridise with one another. As time passes, we understand that these populations can transfer in number, geographic location, and heritable composition from one multiplication to the next. Population genetics is the study of the genetic composition deep down a population and how it is influenced by natural selection, mutation, gene flow, and genetic drift. The relative frequency and distribution of overriding and recessive allele alleles are monitored by population geneticists to understand the genetics of a population. The frequency of a specific allele is calculated as:
Allele frequency = # of copies of a specific allele in a population
occur # of all alleles in population
This formula states that the dominant allele frequency, p, and the recessive allele frequency, q, would to keepher equal to one. In the early twentieth century, Hardy and Weinberg continued Mendels and Darwins work on population genetics. They realized that evolution only occurs when the frequency of alleles in that population changes over time which meant that if the alleles in the population stayed the same, thither would be no evolutionary change.



From there, the two scientist created a numerical equation to determine the frequencies of alleles within a population cognize as the Hardy-Weinberg Principle:
p^2 + 2 pq + q^2 = 1.0
This formula is based on using a Punnett hearty of mating two individual plants. But since the ratio of dominant to recessive alleles are not the same, we can use the allele frequencies for both alleles for a more accurate prediction. The first activate of this lab consists of a taste test to determine the allele and genotype frequencies within a class population. The three samples issuance be based on the bitter taste sensory receptor gene. If there is a strong bitter taste present, the result will be homozygous dominant, TT. If there is a kooky but detectable taste, the result will be...If you want to get a full essay, order it on our website: Orderessay



If you want to get a full essay, wisit our page: write my essay .