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What would decrease genetic variation in a population?
When there is low genetic variation in a population the species produced are unlikely to withstand diseases.
What does not add new alleles to a population gene pool?
1.Which does not add new alleles to a population gene pool?
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.
Genetic drift tends to occur in population that?
Are small
One consequence of genetic drift is?
Genetic drift usually only has effect on the genetic diversity of small populations of a species. Often times, genetic drift can greatly reduce the diversity of a population if a significant percent of members of the population leave by a chance event (as opposed to natural selection.) This means that their alleles for various genes leave with them. Genetic drift does not always effect genetic diversity. Most of the time, it is the allele frequency that is affected by genetic drift. For example, if there are 60 long-finned bass and 40 short-finned bass living in a pond, the gene frequency ratio is 3:2. If 25 short-finned are fished out, the allele frequency is now 4:1. If all or most of the members of a population carrying a specific gene were removed from the population because of genetic drift, that would effect the genetic diversity.
What would decrease genetic variation in a population?
When there is low genetic variation in a population the species produced are unlikely to withstand diseases.
Which population is a subject to genetic drift?
A large population..
A random change in a population's allele frequency?
Evolution is the change in allele frequency over time in a population of organisms. By mutation, genetic drift, gene flow and natural selection.
What is RNA gene drift?
gene drift is when a population experiences a decrease in variation and population size.
What does not add new alleles to a population gene pool?
1.Which does not add new alleles to a population gene pool?
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.
Genetic drift tends to occur in population that?
Are small
What is the term for changes in allele frequency that that happen randomly from one generation to the next?
Genetic drift
Why does genetic drift decrease the genetic diverstity of a population?
If I'm not mistaken genetic drift is the random change in the genome of a population over time. This being said it would be possible that this random changing could eventually remove certain diversity from a population.
Which factor would most likely disrupt genetic equilibrium in a large population?
Genetic Drift
What term defines change changes in allele frequency that have a big effect in small population?
Genetic driftChanges in the frequency of alleles within a population is called genetic drift. Over time, this can cause a significant phenotypic shift from other populations of the same species that have not had the same genetic drift. Given enough time, genetic drift can be significant enough to cause the affected population to be reproductively isolated from the rest of its species and eventually will develop into a new species.
Is genetic drift an adaptive change?
Genetic drift is considered a form of evolution. If a single population is split into two isolated groups then genetic drift will result in increasing differences over time. Eventually they will become two different species, unable to interbreed even if the two groups are brought back together.
