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Allele frequencies in a population refer to the proportion of each allele for a given gene among all alleles at that locus. Since all possible alleles at a locus contribute to the genetic makeup of that population, the sum of their frequencies must equal one, representing the entire genetic pool for that gene. This ensures that the distribution of alleles reflects the entirety of genetic variation available for that trait within the population.
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A population in which allele frequencies do not change from generation to generation is said to be in?
A population in which the allele frequencies do not change from one generation to the next is said to be in equilibrium.
Is it true that for a gene with 2 alleles if the frequency of 1 allele is 0.65 and the frequency of the other allele is 0.30?
No, that is not true. The frequencies of all alleles for a gene must sum to 1. In this case, if one allele has a frequency of 0.65 and the other has a frequency of 0.30, their total would be 0.95, leaving a discrepancy of 0.05. Thus, the frequencies need to be adjusted to satisfy the requirement that they add up to 1.
What would cause allele frequencies to remain unchanged?
Only one thing: extinction.
What does the hardy Weinberg principle state?
allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change
What does a dominant allele always do?
A dominant allele expresses its trait in an individual when present, masking the effect of a recessive allele. This means that if an individual has at least one copy of a dominant allele, the associated trait will be displayed.
A population in which allele frequencies do not change from generation to generation is said to be in?
A population in which the allele frequencies do not change from one generation to the next is said to be in equilibrium.
Is it true that for a gene with 2 alleles if the frequency of 1 allele is 0.65 and the frequency of the other allele is 0.30?
No, that is not true. The frequencies of all alleles for a gene must sum to 1. In this case, if one allele has a frequency of 0.65 and the other has a frequency of 0.30, their total would be 0.95, leaving a discrepancy of 0.05. Thus, the frequencies need to be adjusted to satisfy the requirement that they add up to 1.
What would cause allele frequencies to remain unchanged?
Only one thing: extinction.
What does the hardy Weinberg principle state?
allele frequencies in a population will remain constant unless one or more factors cause those frequencies to change
Do mutations cause change in allele frequencies within a population?
Yes, they can. Mutation is one of the four main mechanisms of evolution.
If and individual has one dominant allele and one recessive allele will the recessive allele show up?
No, the dominant allele will be expressed in the individual's phenotype, masking the presence of the recessive allele. The recessive allele will only be expressed if an individual inherits two copies of the recessive allele.
How can micro evolution happen?
By simple genetic recombination for one. microevolution is just evolution and evolution is the change in allele frequency over time in a population of organisms. Just change over time short of speciation and especially valid for sexually reproducing organisms who always change allele frequencies through coitus and reproduction.
What does a dominant allele always do?
A dominant allele expresses its trait in an individual when present, masking the effect of a recessive allele. This means that if an individual has at least one copy of a dominant allele, the associated trait will be displayed.
Allele frequencies in a population tend to remain the same from generation to generation unless acted on by outside influences?
Genetic equilibrium is a theoretical concept used to study the dymamics of single alleles in the population gene pool. In practice, there is no situation in which allele frequencies do not drift to some degree. Large populations may slow drift down, but there will still be drift.
When you add one cream allele to the basic bay coloring what color results?
Buckskin
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
What does dominate mean in DNA?
A dominant allele is one that will always be expressed when present.
