What must be true for a population to be in Hardy-Weinberg equilibrium? There must be random mating in the population; there must be an infinite population size; and there must be no evolution occurring (no natural selection, no genetic drift, no migration and no mutation).
What must be true of a population that is in Hardy-Weinberg equilibrium?
When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele frequencies will stay the same across generations. There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection.
What criteria must a population meet in order to stay in Hardy-Weinberg equilibrium quizlet?
They are said to be in Hardy-Weinberg equilibrium: – Very large population: No genetic drift can occur. -No immigration or immigration: No gene flow can occur. -No mutations: No new alleles can be added to the gene pool.
What do PQ p2 2pq and q2 represent?
p2 +2pq + q2 = 1 Where p2 represents the frequency of the homozygous dominant genotype, q2 represents the frequency of the recessive genotype and 2pq is the frequency of the heterozygous genotype.
Which does not affect Hardy-Weinberg equilibrium?
The conditions to maintain the Hardy-Weinberg equilibrium are: no mutation, no gene flow, large population size, random mating, and no natural selection. … Therefore mutation, gene flow, small population, nonrandom mating, and natural selection will disrupt the equilibrium.
Why is there a 2 in 2pq?
The term p2 represents the frequency of dominant homozygotes (AA) and the term q2 represents the frequency of recessive homozygotes (aa). p represents the allele frequency of allele A, and q represents the allele frequency of the allele a.
How do you know if something is in Hardy-Weinberg equilibrium?
To know if a population is in Hardy-Weinberg Equilibrium scientists have to observe at least two generations. If the allele frequencies are the same for both generations then the population is in Hardy-Weinberg Equilibrium.
What is meant by Hardy-Weinberg equilibrium?
The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors. … For instance, mutations disrupt the equilibrium of allele frequencies by introducing new alleles into a population.
What 5 conditions are required for a population to stay in equilibrium?
The Hardy-Weinberg model states that a population will remain at genetic equilibrium as long as five conditions are met: (1) No change in the DNA sequence, (2) No migration, (3) A very large population size, (4) Random mating, and (5) No natural selection.
When a population is said to be in equilibrium it means quizlet?
-A population in Hardy-Weinburg equilibrium is not changing genetically, not evolving. -Comparing gene frequencies in two succeeding generations can show if evolution is occurring(it is occurring if the frequencies change) and can determine which direction and rate of evolution.
When a population is not in Hardy-Weinberg equilibrium What does that demonstrate quizlet?
What can be concluded if real genetic data do not match the frequencies predicted by the equation? The population is NOT in Hardy-Weinberg equilibrium, which means one or more of the conditions are not met, which means the population is evolving.