0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is a change in the allele frequiencies of a population due to the migration of a small subgroup of the population to a new place?
Genetic drift. The subgroup is subject to the founder effect.
Which is an example of a genetic drift?
allele frequencies change randomly each generation ~*Apexx*~
Why are Inunit people an example of evolution?
They are well adapted to their environment due to change over time in their allele frequency.
What do biologist call the process when allele frenquencies in a population of a species change over time due to chance?
C:Genetic drift
What causes an allele frequency to go up in one generation and back down in the next generation?
There are three basic reasons: 1. Natural Selection-- thr environment may have favored the allele in previous generations, but now disfavors it. 2. Genetic Drift-- in every finite population, the frequency of an allele will fluctuate due to chance. For example, the vast majority of sperm fail to fertlize any egg, so allels can be lost this way due to chance. Individuals carrying a copy or copies of an allele may die young due to random accidents, or may never find a mate. These basic chance events cause the frequencies of alleles to fluctuate, and the degree of frequency change depends upon the population size. The greater the population size, the smaller the change in frequency. 3. A combination of both.
What is Generation-to-generation change in the allele frequencies in a population?
Evolution, of course.Evolution is the change in allele frequency over time in a population of organisms.
What do biologist call the process when allele frequencies in a population of a species change over time due to change?
FOR PENNFOSTER....the answer is C) genetic drift
What do biologists call the process when allele frequencies in a population of a species change over time due to chance?
genetic drift
Which is an example of genetic drift?
Allele frequencies change randomly each generation. APEX
The situation in which allele frequencies of a population remain constant is called?
That situation is called a Hardy-Weinberg equilibrium. Not actually seen outside of the lab.
What are the changes of allele frequency in a small population that is due to random chance and don't follow the laws of probability?
Random changes in allele frequency are due to genetic drift.
What is a change in the allele frequiencies of a population due to the migration of a small subgroup of the population to a new place?
Genetic drift. The subgroup is subject to the founder effect.
When are two populations considered new and separate species?
A new species can occur when;1. Change in allele frequencies-genetic drift can result in loss of alleles in a population-one allele becomes the only variation, becomes "fixed"2. Gene flow due to migration-movement of alleles into or out of a population3. Non-random mating-individuals have preferred mates rather than random4. Mutations-a change in DNA can be beneficial, neutral, or harmful5. Natural Selection-best adapted, more likely to survive
Which is an example of a genetic drift?
allele frequencies change randomly each generation ~*Apexx*~
What caused England's Biston betularia moth populations to change over time from light colored to dark colored?
Changes in allele frequencies Novanet
Genetic drift can best be described as?
D) the change in frequencies of alleles due to random events
What are changes in lifestyles due to migration?
due to migration there is no particular place.
