16 Questions
In sociology and population geography, the term 'population' refers to:
A group of human beings with some predefined criteria in common
What is the etymology of the word 'population'?
Derived from the Late Latin populationem
What does the Lincoln index calculate in ecology?
The total population of an area based on the number of individuals observed
What is the meaning of 'population' in the context of ecology?
A group of organisms of the same species who inhabit the same particular geographical area
What is the significance of conducting a census in the context of population?
To quantify the size of a resident population within a given jurisdiction
What is the area of a sexual population in ecology?
The area where inter-breeding is possible between any pair within the area
What term is used to describe a set of organisms in which any pair of members can breed together and exchange gametes?
Gamodeme
Which geneticist is credited with showing how allele frequencies can be converted to genotype frequencies by expanding an appropriate quadratic equation?
Sir Ronald Fisher
What term describes the breaking up of a large sexual population into smaller overlapping sexual populations due to localization of gamete exchange?
Dispersion
What is quantified by the inbreeding coefficient (f or φ) in a population?
Homozygosity
Which genetic process leads to the overall rise in homozygosity and is quantified by the inbreeding coefficient?
Inbreeding
What is the term for the decrease in the mean phenotype of the gamodemes collection compared to the panmictic original?
Inbreeding depression
Which procedure deliberately utilizes the effects of dispersion in plant and animal breeding?
Line breeding
What leads to the greatest genetic advance and is much more powerful than selection acting without attendant dispersion?
Dispersion-assisted selection
What term refers to the exchange of gametes reasonably uniformly within small actual gamodemes but virtually being separated from their neighboring gamodemes?
Panmixia
What leads to small actual gamodemes which exchange gametes reasonably uniformly within themselves but are virtually separated from their neighboring gamodemes?
Localization of gamete exchange
Study Notes
Population in Sociology and Geography
- In sociology and population geography, the term 'population' refers to a specific group of people living in a particular area.
Etymology of 'Population'
- The term 'population' originates from the Latin words 'populare', meaning 'to inhabit', and 'populus', meaning 'people'.
Lincoln Index in Ecology
- The Lincoln index calculates the overlap between two species' ranges in ecology.
Population in Ecology
- In ecology, 'population' refers to a group of organisms of the same species that live and interbreed in a specific geographic area.
Importance of Census in Population
- Conducting a census is crucial in population studies as it provides data on population size, structure, and distribution.
Sexual Population in Ecology
- The area of a sexual population in ecology refers to the geographic range within which individuals of a species can interbreed.
Interbreeding Population
- A panmictic unit is a set of organisms in which any pair of members can breed together and exchange gametes.
Sewall Wright's Contribution
- Sewall Wright, a geneticist, showed how allele frequencies can be converted to genotype frequencies by expanding an appropriate quadratic equation.
Inbreeding and Genetic Drift
- The breaking up of a large sexual population into smaller overlapping sexual populations due to localization of gamete exchange is known as genetic drift.
- The inbreeding coefficient (f or φ) quantifies the degree of inbreeding in a population.
Inbreeding Coefficient
- The inbreeding coefficient (f or φ) measures the rise in homozygosity in a population due to inbreeding.
Inbreeding Depression
- Inbreeding depression refers to the decrease in the mean phenotype of the gamodemes collection compared to the panmictic original.
Plant and Animal Breeding
- The procedure that deliberately utilizes the effects of dispersion in plant and animal breeding is known as line breeding.
- Line breeding leads to the greatest genetic advance and is more powerful than selection acting without attendant dispersion.
Isolation by Distance
- Isolation by distance leads to small actual gamodemes that exchange gametes reasonably uniformly within themselves but are virtually separated from their neighboring gamodemes.
Test your knowledge of population terminology with this quiz. This quiz covers the meaning of population in various contexts, including human, non-human animals, microorganisms, and plants, as well as its specific uses within fields like ecology and genetics.
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