One genotype frequencies of the ratio between the number of individuals with the genotype that individuals in the population. In the above example, The frequency of genotype BB is 1490/1000 or frequency of genotypes Bb and bb 0.49 and 0.42 (42/1000) and 0.09 (90/1000), respectively, for the frequency of alleles is one of the alleles. The number of alleles of genes of the population, such as the frequency of alleles B is equal to the number of alleles B divided by the sum of the number of alleles and B alleles b in the population by that. The genotype of each gene, one other person. It consists of two alleles The sample comprises alleles of each gene transcripts were 2,000 (2 × 1,000) alleles, so the frequency of alleles B is calculated by the number of individuals with genotype BB 490 people representing a number of LA. Lille B was 980 (490 × 2) alleles with the number of alleles B 420 alleles from individuals with genotype Bb 420 the number of alleles B in this population is equal to 1400 (980. + 420) alleles representing frequencies of alleles B is equal to 0.7 (1400/2000) Similarly, the number of alleles 0.3 b (600/2000) which, when combined frequencies of alleles B. alleles and b is equal to 1 (0.7: 0.3) over time to change the gene pool of a population. The survey found that the frequency of allele and genotype frequencies different from the original. Show that populations evolve happen. On the other hand If that does not change the frequency of an allele and genotype frequencies of each generation. Show that the population is not evolution itself. The population does not change the frequency of alleles and genotypes frequencies in each generation. The population is balanced genetic (genetic equilibrium) the population in equilibrium (equilibrium population) in 1908 Godley Hotel Frederick Hardy (Godfrey Hardy) British mathematician. And Wilhelm M. Weinberg (Wilhelm Weinberg) describe the genetic balance of the population using a mathematical algorithm. Which today is called Main Hardy - Weinberg. (Hardy-Weinberg Principle) by explaining that "in a large population with random mating between members (random mating) if there is no mutation, migration and natural selection occur. Frequencies of alleles and genotypes frequency in the next generation will not change " from the Hardy - Weinberg. The gene pool of a population at a frequency of alleles. 1 (assuming a dominant alleles) = p and frequency of alleles at two (assuming that the alleles are recessive) = q by p + q is equal to 1, so the frequency of different genotypes. In population, it is The following frequencies of genotypes in Homburg the site Gus Dominguez Nantwich = p2 frequency of genotypes in Homburg the site Vegas Resort Spa Sea = q2 and frequency of genotypes with Heather Heterocyclic Vegas. = 2pq hence the frequency of genotypes different in population is p2 + 2pq + q2 and write the equation of the frequency distribution of genotypes in the population has the p2 + 2pq + q2 = (p + q) 2 because p + q = 1. The conversion equation is p2 + 2pq + q2 = 1 equation is called. Equation Hardy - Weinberg. This equation can be used to determine the frequencies of alleles and genotypes frequency in the population is in equilibrium the population by Hardy - Weinberg. The ideal population The balance of population genetic occur under the assumption (assumption) the following : 1. a large population (large population) have very many members of the population. So when a person has lost any genotype genotype one accidentally does not result in a change in the frequency of alleles in a population, such as the example above. If the losing party genotype BB somewhat by chance. The frequency of alleles in the gene pool unchanged B 2. The random mix (random mating) means that individuals with different genotypes. The population has not been selected genotypes in breeding populations like genotype 3 is BB, Bb and bb individuals with genotype BB had a chance to mate with individuals with genotype BB or Bb or bb is equal third. No mutation (no mutation) in a population without the mutation of genes such as mutation of alleles b are alleles B or mutation of alleles B is alleles b thus no increase. or any loss of alleles from the population 4. No evacuation (no migration) of the population is moving away. And no members of other immigrant groups move in. The lack of alleles out. Or to the population 5. No natural selection (no natural selection) individuals with different genotypes. The population can grow to reproductive age. And reproduction of individual genes to the next generation as equal in natural populations balanced genetic minimal. Most of the population is changing the frequency of alleles. And genotype frequencies of the time. The gradual change in response to environmental changes within a short period of evolution at the micro level. (Microevolution) factors that cause a change in the frequency of alleles in a population are the factors that have an effect contrary to the assumptions of the Hardy - Weinberg mentioned above, for example. Members of a small minority. A large population of scaled-down abruptly. Mating between members of a selected population characteristics, or genotype. The evacuation of the population, continued. Has become a cause of genetic variation between individuals in a population. And natural selection has occurred, etc. So when these factors occur with members of the population. Will result in a population to evolve, natural selection (Natural Selection) , according to Darwin's theory. Natural selection as the mechanism of evolution of living organisms. Members who succeed in adapting to the environment is likely to survive and reproduce, transferring to the progeny have more members who are unable to adapt, namely the population consisting of members with characteristic phenotypic diversity. Most of the manner determined by genetics. In environmental conditions may be unsuitable for life as a certain manner appropriate to the environment can survive and live longer. However, the surviving members of a right, not a requirement that members are then able to transfer the gene to the future generations more.
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