What Is The Relationship Between A Gene Pool And The Phenotypic Makeup Of A Population?

Key Difference – Gene Frequency vs Genotypic Frequency

At nowadays, population genetics has get a widely studied field past geneticists due to the pop trend of emerging species. Thus, population genetics tin exist measured through microevolution where the development of a small population is analyzed in terms of its allele frequency or gene frequency, genotypic frequency and phenotypic frequency. These calculations are washed in order to determine the similarity of a population and to develop evolutionary relationships amid different species in a population over a period of time. The frequency determines the number of times a particular gene, genotype or phenotype is repeated in a particular population. The key difference between factor frequency and genotype frequency lies in the particular factor in which the frequency is determined. In gene frequency, it is a gene or an allele that determines the frequency while, in genotypic frequency, it is a genotype that determines the frequency.

CONTENTS

1. Overview and Key Difference
two. What is Gene Frequency
three. What is Genotypic Frequency
four. Similarities Betwixt Cistron Frequency and Genotypic Frequency
v. Side by Side Comparison – Gene Frequency vs Genotypic Frequency in Tabular Form
6. Summary

What is Gene Frequency?

The factor is the unit of heredity which is transferred from parent to the offspring generation. The information which governs the characteristics of the offspring is stored in these genes. Every factor exists in alternative pairs, and an allele is ane alternative form of the gene. Cistron frequency, which more or less refers to the allele frequency, is the measurement where the number of repeats of the aforementioned allele is measured over a certain menses of time. Thus, cistron frequency (allele frequency) refers to how frequently an allele of a gene appears in a population.

The gene frequency can be measured in a micropopulation by using a simple formula every bit follows, and the value is usually given every bit a percentage.

Frequency of an allele 'A' = Number of copies of allele 'A' in a population ÷ Total number of copies of allele A/a in the population

Gene Frequency Calculation

Example 01:

Calculation of gene frequency of a flowering plant population with a dominant allele P for purple color plants and a recessive allele p for white color plants is worked beneath.

Total number of genes in the population = g

Gene frequency for factor P                           =  [{(320 x 2) +160}/grand] x 100

        = 80%

Cistron frequency for gene p                           = [{(20 x two) +160}/1000] x 100

        = twenty%

What is Genotypic Frequency?

Genotype is the genetic expression of a item trait or a characteristic and involves two or more alleles together to give rise to the particular expression. The genotype can be homozygous (alleles are of the same form – PP) or heterozygous (alleles are of unlike forms – Pp). The genotypic frequency measurement refers to how many times a particular genotype is expressed in a population at a given period of time. Thereby the genetic human relationship inside a population can be adamant.

Genotypic Frequency Calculation

As per the example given in gene frequency adding, the genotypic frequency can be calculated in the post-obit way and is expressed as a percentage.

Total number of Genotypes    = 500

Genotypic frequency of PP     = [320/500] x 100 = 64%

Genotypic frequency of Pp     = [160/500] x 100 = 32%

Genotypic frequency of pp     = [20/500] ten 100 = 4%

What are the Similarities Between Gene Frequency and Genotypic Frequency?

• Cistron frequency and genotypic frequency are measured within a item population, preferably in a micropopulation.
• Both percentages are measured inside a particular fourth dimension menstruum.
• Both values are expressed as a percentage.
• Both measurements are used to decide the genetic relationships within a selected population.

What is the Difference Between Gene Frequency and Genotypic Frequency?

Cistron Frequency vs Genotypic Frequency
Gene frequency is the percentage of a particular gene/allele being repeated in a given population at chosen menses of fourth dimension.	Genotypic frequency is the percentage of a genotype beingness repeated in a given population at chosen period of time.
Evolutionary Rate
Gene frequency evolves fast within a gene pool.	Genotypic frequency evolves at a slower rate within the gene pool.
Construction
Cistron frequency can be either dominant or recessive.	Genotypic frequency can be homozygous dominant, homozygous recessive or heterozygous.
Complication in Measurement
Factor frequency is more complex every bit it is measured at the allelic level.	Genotypic frequency is less complex.

Summary – Gene Frequency vs Genotypic Frequency

The cistron pool which consists of the total number of genes in a detail population constantly evolves as species undergo adaptations for environmental and other physical factors surrounding them. Hence, geneticists use changes in genes and genotypes to report the evolutionary patterns over a menses of time. The gene frequency and genotypic frequency are measurements conventionally adamant through Mendel's theories but advanced with the theories put forward by Darwin on evolution. Allele or gene frequency is a measure of the relative frequency of an allele on a genetic locus in a population. Genotypic frequency is the proportion of a detail genotype among all the individuals in a population. This is the difference between factor frequency and genotypic frequency.

Download PDF Version of Gene Frequency vs Genotypic Frequency

You can download PDF version of this article and use it for offline purposes as per citation annotation. Please download PDF version here Difference Betwixt Gene Frequency and Genotype Frequency.

References:

ane. "Allele frequency & the factor pool." Khan Academy. N.p., n.d. Spider web. Bachelor here. 08 Aug. 2017.
2. "Genotypic Frequency: Definition & Explanation". Study.com, n.d. Web. Available here. 08 Aug. 2017.

Source: https://www.differencebetween.com/difference-between-gene-frequency-and-vs-genotypic-frequency/

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