What term describes the distribution of a particular allele within a population?

What term describes the distribution of a particular allele within a population?

Allele frequency (also called gene frequency) is the term used to describe the fraction of gene copies that are of a particular allele in a defined population.

What is allele distribution?

Allele frequencies represent the prevalence of a particular allele in a population, as a proportion of all the alleles for that gene. Consequently, allele frequencies are either represented as a percentage or as a value from 0 to 1.0.

What is it called when there is only one allele in a population?

A fixed allele is an allele that is the only variant that exists for that gene in all the population. The term allele normally refers to one variant gene out of several possible for a particular locus in the DNA.

What population factors influence allele distribution?

These include selection, mutation, genetic drift, gene flow, and other factors such as the degree of pleiotropy, the distance to the phenotypic optimum, whether the optimum is stable or moving, and whether new mutation or standing genetic variation provides the source of adaptive alleles.

What is meant by the term single gene trait?

Supplement. A monogenic trait is a trait produced by the effect of a gene or an allele. It is in contrast to a polygenic trait that is controlled by a polygene (multiple genes). Since the trait is produced by a single gene or allele it is less complicated compared with the trait produced by a polygene.

What do allele frequencies tell us about a population?

Allele frequency is a measure of the relative frequency of an allele on a genetic locus in a population. In population genetics, allele frequencies show the genetic diversity of a species population or equivalently the richness of its gene pool.

What is allele frequency in a population?

The allele frequency represents the incidence of a gene variant in a population. An allele frequency is calculated by dividing the number of times the allele of interest is observed in a population by the total number of copies of all the alleles at that particular genetic locus in the population.

What if there is only one allele?

When only one allele of a gene is actively transcribed, gene expression is termed monoallelic. What does monoallelic gene expression have to do with cats, twins, and genetic diseases? The two chromosomal copies (alleles) of a gene are designated \”A\” and \”a.

What is single allele?

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.

What are the five factors that influence the allele frequency in a population?

Five factors are known to affect Hardy- Weinberg genetic equilibrium such as genetic drift, gene flow, mutation, non-random mating and natural selection.

What are the five factors that change allele frequency within a population?

Allele frequencies of a population can be changed by natural selection, gene flow, genetic drift, mutation and genetic recombination. They are referred to as forces of evolution.

What refers to the fact that different individuals of a population?

Genetic variation refers to the fact that different individuals of a population have different alleles of genes. Which of the following is true of evolutionary forces in natural populations? Nice work!

How do alleles of genes on one pair of homologous chromosomes sort?

C) Alleles of genes on one pair of homologous chromosomes tend to sort independently of alleles on other chromosomes. D) Alleles of genes on one pair of homologous chromosomes sort depending on the assortment of alleles on other chromosomes.

What are the three conditions of a heritable population?

Condition 1: The population must vary in traits that are heritable. Condition 2: Some heritable traits must increase reproductive success. Condition 3: Individuals pass on all traits they acquire during their lifetime.

What is the difference between natural selection and artificial selection?

C. Artificial selection can produce maladaptive structures, natural selection cannot. D. Artificial selection cannot produce changes as large as changes produced by natural selection. E. In artificial selection, the magnitude of the selection pressure can be varied; in natural selection, it cannot.