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Why is rapid evolutionary change more likely occur in small populations?
Wiki User
∙ 6y ago
Because of a small gene pool. small population generally equals small gene pool
Russell Herman
Eloise Upton
less mating possibilites because of smaller population
Wiki User
∙ 13y agoGenetic drift is a random process. For example, say we had a small population of beetles of only green and black color. Say 100 ( 75 green; 25 black ) of them. A storm came along and caught, by chance, 20 of the black beetles away from shelter and drowned them. Naturally, the green allele would now be over represented in our small population. In a population of thousands of beetles the chance of a disaster almost destroying a representation of a allele would be much less probabilistic. In the small beetle first example we have classic drift at work changing allele frequency.
Wiki User
∙ 11y agoSmall population gene pool. Evolution is the change in allele frequency over time in a population of organisms. Have a small population, a small gene pool of the population and the allele frequency can change very rapidly as any changes in this frequency are large enough against the genes already in the population's small gene pool. This is why drift has such a large effect in small populations; the population pool can be swamped by random events.
Wiki User
∙ 12y agoSmaller populations are more effected by genetic drift because there are less alleles to "balance out" the effect of random changes.
Wiki User
∙ 10y agoYes. But because of the small gene pool, inbreeding will happen and many genetic defects will occur and may cause the population to crash.
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Genetic drift is most likely to occur in?
small populations
Resource partitioning would be most likely to occur between?
sympatric populations of species with similar ecological niches
What kinds of populations are affected by genetic drift?
Genetic drift occurs in all finite populations. However the effects of drift are more pronounced in smaller populations than in large ones. Meanwhile, even though they are more present in smaller populations, the drifting is more likely to occur in larger populations because of the larger number of different genetic combinations present. Throughout evolution of populations, genetic drifting effects all types of population sizes, though it is more likely in larger populations but more present in smaller populations.
When a small population separates from a larger population the allele frequencies change between the two populations. Which is event is most likely to occur from such frequent changes?
They will each become more and more different. Especially if their environments also change.They may become separate species.
Why a species is most likely to undergo adaptive radiation?
When there is a sudden and long lasting change in the environment, adaptive radation will occur.
When changes occur in the genes of sex cells these changes... a lead to mutations in the parent organism b are always harmful to the offspring c can be the basis for evolutionary change and 4?
Of the picks only c can be correct because these mutations could lead to evolutionary change in future populations of these organisms under question.
When is genetic drift least likely to occur?
Small populations
Genetic drift is most likely to occur in?
small populations
Resource partitioning would be most likely to occur between?
sympatric populations of species with similar ecological niches
Which event is the most likely cause for the four periods when punctuated equilibrium seems to occur?
Extinction events, such as the Permian extinction and the KT extinction event. You have adaptive radiation driving evolutionary change after such events. Google " the rise of the mammals. "
Could a single mutation cause barbules to form on feather barbs?
Although the cause of barbules to form on feather barbs doesn't sound like a difficult change in evolution, it would likely take more than just a single mutation for such an evolutionary change to occur. Most likely, it would take many mutations.
Does genetic drift occur in small or large populations?
Small populations.
Which chemical change is most likely to involve bubbling or an odor?
A chemical change doesn't occur.
Revolutions are more likely to occur when?
Those in power are resistant to change.
Which is defined as any adverse event that is likely to occur?
Change request
Is defined as any adverse event that is likely to occur?
Change request
What kinds of populations are affected by genetic drift?
Genetic drift occurs in all finite populations. However the effects of drift are more pronounced in smaller populations than in large ones. Meanwhile, even though they are more present in smaller populations, the drifting is more likely to occur in larger populations because of the larger number of different genetic combinations present. Throughout evolution of populations, genetic drifting effects all types of population sizes, though it is more likely in larger populations but more present in smaller populations.
