In a certain population of frogs, 120 are green, 60 arebrownish green, and 20 are brown. The allele forbrown is denoted GB, while that for green is GG, andthese two alleles are incompletely dominant.a. What are the genotype frequencies in thepopulation?b. What are the allele frequencies of GBand GG inthis population?c. What are the expected frequencies of the genotypes if the population is at Hardy-Weinbergequilibrium?
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.
In a certain population of frogs, 120 are green, 60 are
brownish green, and 20 are brown. The allele for
brown is denoted GB
, while that for green is GG, and
these two alleles are incompletely dominant.
a. What are the genotype frequencies in the
population?
b. What are the allele frequencies of GB
and GG in
this population?
c. What are the expected frequencies of the genotypes if the population is at Hardy-Weinberg
equilibrium?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images
