Chapter 16
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| population genetics | the study of the frequency and interaction of alleles and genes in populations
🗑
|
||||
| microevolution | a change in the collective genetic material of a population
🗑
|
||||
| bell curve | a symmetrical frequency curve
🗑
|
||||
| gene pool | all of the genes of the reproductively active members of a population
🗑
|
||||
| allele frequency | the proportion of gene copies in a population that are a given allele, expressed as a percentage
🗑
|
||||
| phenotype frequency | the ratio if individuals with a particular phenotype to the total number of individuals in a population
🗑
|
||||
| Hardy-Weinberg genetic equilibrium | the principle that states that the frequency of alleles in a population does not change unless evolutionary forces act on the population
🗑
|
||||
| immigration | the movement of an individual or a group to a new community or region
🗑
|
||||
| emigration | the movement of an individual or group out of its native area
🗑
|
||||
| gene flow | the movement of genes into or out of a population due to interbreeding
🗑
|
||||
| genetic drift | the random change in allele frequency in a population
🗑
|
||||
| sexual selection | an evolutionary mechanism by which traits that increase the ability of individuals to attract or acquire mates appear with increasing frequency in a population; selection in which a mate is chosen on the basis of a particular trait or traits
🗑
|
||||
| stabilizing selection | a type of natural selection in which the average form of a trait is favored and becomes more common
🗑
|
||||
| disruptive selection | a type of natural selection in which two extreme forms of a trait are selected
🗑
|
||||
| directional selection | a natural selection process in which one genetic variation is selected and that causes a change in the overall genetic composition of the population
🗑
|
||||
| speciation | the formation of new species as a result of evolution
🗑
|
||||
| morphology | the study of the structure and form of an organism
🗑
|
||||
| biological species concept | the principle that defines a species as a group of organisms whose members can interbreed to produce offspring
🗑
|
||||
| geographic isolation | the physical separation of populations due to geographic barriers that prevent interbreeding
🗑
|
||||
| allopatric speciation | species that arise as a result of geographic isolation
🗑
|
||||
| reproductive isolation | the inability of members of a population to successfully interbreed with members of another population of the same or a related species
🗑
|
||||
| prezygotic isolation | type of reproductive isolation that occurs before fertilization
🗑
|
||||
| sympatric speciation | occurs when two subpopulations become reproductively isolated within the same geographic area.
🗑
|
||||
| gradualism | a model of evolution in which gradual change over a long period of time leads to biological diversity
🗑
|
||||
| punctuated equilibrium | a model of evolution in which short periods of drastic change in species, including mass extinctions and rapid speciation, are separated by long periods of little or no change
🗑
|
||||
| postzygotic isolation | type of reproductive isolation that occurs after fertilization
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
FarlowA20
Popular Biology sets