What is Hardy-Weinberg principle in simple terms?
Definition. A principle stating that both allele and genotype frequencies in a randomly-mating population remain constant – and remain in this equilibrium across generations — unless a disturbing influence is introduced.
What does the Hardy-Weinberg model describe?
The Hardy-Weinberg principle is a mathematical model used to describe the equilibrium of two alleles in a population in the absence of evolutionary forces.
How would you describe a population 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 does Hardy-Weinberg relate to?
The Hardy–Weinberg principle relates allele frequencies to genotype frequencies in a randomly mating population. Imagine that you have a population with two alleles (A and B) that segregate at a single locus. The frequency of allele A is denoted by p and the frequency of allele B is denoted by q.
What is another name for reproductive population?
(Q002) What is another name for a reproductive population? Correct! species.
How does Hardy-Weinberg define evolution?
The Hardy-Weinberg equilibrium principle describes the unchanging frequency of alleles and genotypes in a stable, idealized population. In this population we assume there is random mating and sexual reproduction without normal evolutionary forces such as mutation, natural selection, or genetic drift.
How does the Hardy-Weinberg equation help us identify evolution explain?
By describing specific ideal conditions under which a population would not evolve, the Hardy-Weinberg principle identifies variables that can influence evolution in real-world populations.
What is another name for the evolutionary force called gene flow?
gene flow, also called gene migration, the introduction of genetic material (by interbreeding) from one population of a species to another, thereby changing the composition of the gene pool of the receiving population.
What is another name for a reproductive population quizlet?
Balanced polymorphism means that not all African Americans are heterozygous for the sickle-cell trait. (Q002) What is another name for a reproductive population? Correct! species.
What is another example of natural selection?
A classic example of natural selection at work is the origin of giraffes’ long necks. The ancestors of modern giraffes were animals similar to deer or antelope, with necks of ordinary length.
What did Hardy and Weinberg discover?
Abstract. In 1908 the British mathematician Hardy and the German medical doctor Weinberg independently discovered that in an infinitely large population that mates randomly according to Mendel’s laws, the frequencies of the genotypes obtained from two alleles remain constant through generations.
What can the Hardy Weinberg theorem be used to predict?
In population genetics studies, the Hardy-Weinberg equation can be used to measure whether the observed genotype frequencies in a population differ from the frequencies predicted by the equation.
What is another name for a reproductive population?
What is genetic drift vs gene flow?
Gene flow is the process of alleles going from one population to another, while genetic drift is the alteration of allele frequency in a gene pool.
What is the theory of evolution in simple terms?
The theory of evolution is based on the idea that all species? are related and gradually change over time. Evolution relies on there being genetic variation? in a population which affects the physical characteristics (phenotype) of an organism.
What is natural selection in simple terms?
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
How does natural selection apply to real life situations?
If something caused low-lying shrubs to die out, the giraffes with shorter necks would not get enough food. They would not survive to produce offspring. After a few generations, the surviving giraffes would have longer necks, because that body type is more suited to survive in the environment.