0
Populations can become reproductively isolated through mechanisms such as geographic isolation (resulting in allopatric speciation), behavioral differences (resulting in prezygotic isolation), or genetic changes that lead to incompatibility between individuals (resulting in postzygotic isolation). These barriers prevent gene flow between populations, leading to their divergence and ultimately speciation.
Add your answer:
Earn +20 pts
What is it called when a population diverges and becomes reproductively isolated?
Speciation
What factor can cause to two populations to become reproductively isolated?
Geographic isolation, where physical barriers prevent gene flow between populations, can cause reproductive isolation. This can lead to genetic differences accumulating over time, ultimately resulting in the development of separate species.
What does it mean if 2 populations of a species become isolated?
If two populations of a species become isolated, it means that they are separated from each other and cannot interbreed. Over time, this isolation can lead to genetic differences between the populations, potentially resulting in the development of new species through the process of evolution.
What type of speciation occurred when a plant population becomes reproductively isolated while living with its parent population?
Sympatric Speciation
What happens when members from separated populations do not reproduce with each other?
Over time, the populations may become genetically distinct from one another due to accumulation of different mutations. This can lead to the evolution of new species if the genetic differences become significant enough to prevent successful reproduction between individuals from the two populations.
What happens when two populations have been reproductively isolated and can no longer breed?
Speciation
What three types of barriers that can cause populations to become reproductively isolated from each other?
Isolation can be due to behavioral, geographical, or temporal barriers.
Speciation can result when two populations have become?
reproductively isolated. This can occur through various mechanisms such as geographical isolation, temporal isolation, or behavioral differences. Over time, this isolation causes genetic divergence and leads to the formation of new species.
If two populations have been reproductively isolated and can no longer breed and produce fertile offspring the process of what has occurred?
If two populations of the same species no longer interbreed then their differences will start to become more pronounced and eventually they will become so different that they will be classified as two different sub-species.
What process occurs when local units of a population become reproductively isolated from other units?
genetic divergence
What is it called when a population diverges and becomes reproductively isolated?
Speciation
What is another name for geographic isolation?
Another name for geographic isolation is allopatric isolation. This refers to a type of isolation where populations become reproductively isolated due to physical barriers preventing gene flow between them.
Which idea explains Darwin's observations about galapagos Islands finches?
Biological Species Concept, which defines species as groups of interbreeding populations that are reproductively isolated from other groups.
How does reducing gene flow cause speculation?
Reducing gene flow between populations can lead to genetic differences accumulating over time through genetic drift and natural selection. This can result in the formation of new species through speciation as populations become reproductively isolated and diverge evolutionarily.
What type of speciation occurs when a plant population becomes reproductively isolated while living with its parent population?
Sympatric speciation occurs when a plant population becomes reproductively isolated while living with its parent population. This occurs without physical separation, often driven by ecological or behavioral factors that prevent interbreeding between the populations.
What must happen for speciation to happen?
A population must be isolated in some way.
Is evolution is theory or law?
Evolution is both fact and theory. One could say that there are laws of evolution. One such law could be: that reproductively isolated populations will always diverge genetically.
