Table 1. Use the numbers of individuals with each of the three CCRS genotypes among 1318 Caucasian blood donors, to fill in the empty boxes (Data Source: Glass et al. 2006). Numbers observed Frequency observed (round to 3 decimal places) Frequency expected for population in HWE (round to 3 decimal places) +/+ Numbers of individuals expected (frequency expected times 1318 round to nearest whole number) 1102 Genotypes +/632 Use the data above to calculate allele frequencies. Freq of + Freq of 432 203 432/432 13 (round to 3 decimal places) row must sum to -1 values must sum to-1 row must sum to-1 row sums to 13187
Evolutionary Genetics
Evolution is known as continuous changes that occur to adjust organisms in their changing environment over many generations. Various theories have been proposed to illustrate the origin of life and organic evolution. The most accepted one is the theory of natural selection by Charles Darwin. According to his postulate, organisms undergo a struggle for existence due to overproduction. To survive in nature, they acquire variations. The inheritable variations are selected by nature, and it leads to the survival of the fittest.
Phenotype Frequency
The majority of populations have a certain degree of variation in their genetic pools. Scientists can predict the genetic variation happening over time by measuring the amount of genetic variation in a population and these predictions assist them in gaining important insights into the processes that allow organisms to adapt to the environment or to develop into new species over generations. This process is referred to as the process of evolution.
Hardy Weinberg Equilibrium
The frequencies of allele and genotype were maintained constant from one generation to another due to the absence of other evolutionary forces. It is otherwise called the Hardy Weinberg principle the field of population genetics.
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