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What is the differernce between family genetics and population genetics?
Population genetics deals with the genetics of large groups of individuals and the statistics/probability/inheritance patterns in those groups. On the whole this field of study does not manipulate genetic material and is not directly involved in breeding studies. One of the primary tenents of population genetics is that an allele will remain in a population at the same frequency as long as it is neither selected for or against. (The Hardy-Wienburg Principle).
When Hary Weinberg Law in population Genetics is not applicable if the conditions are not followed then why you study it mean what its importance?
The Hardy-Weinberg principle posits that in the absence of outside evolutionary forces, a population's alleles and genotype frequencies will remain constant. Biologists use this principle as the standard against which to test outside evolutionary forces on a population.
How does genetic information pass unchanged from one generation to the next even when a specific trait is not exhibited?
This is a principle of population genetics based on the Hardy-Weinberg Principle. A trait that is neither selected for nor against will remain in the population at the same frequency. In most populations the frequency values can be back calculated from the percentage of the population that is homozygous recessive. The basic equations are p+q=1 and p (squared) + 2pq + q (squared)=1 The value of q (squared) is the frequency of homozygous recessive individuals in the population. So if 20% of the population is homozygous recessive, then q (squared) is .20. This makes q=.45 (approx.) So, in order to produce a population where 20% of all individuals are homozygous recessive a full 45% of all the alleles at that gene locus are recessive. p=.55 p+q=.55+.45=1.0 Now all the numbers for the homozygous dominant and heterozygotes can be calculated. The approximate percent of the population that is homozygous dominant is 30% with 50% of the population represented by heterozygotes. .3+.5+.2=1 As the gene frequency for an allele decreases the less likely two individuals that are heterozygous for the trait will be to breed and produce either a homozygous recessive individual or a homozygous dominant. In the case where a characteristic is dominant and has a low frequency, the trait will be seen in family lines but rarely has the opportunity to be passed beyond a small population because there is no selection for the characteristic. An example of this is 6 fingered (polydactyl) individuals, which is a dominant trait. They exist in the population but they are rarely seen.
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Why does voltage remain constant in the reverse breakdown region in a zener diode?
This space is for answering "http://wiki.answers.com/Q/Why_does_voltage_remain_constant_in_the_reverse_breakdown_region_in_a_zener_diode" Why does voltage remain constant in the reverse breakdown region in a zener diode?
What is genetic equilibrium and how does it describe a population in which the allele frequencies remain constant and do not change over time?
Genetic equilibrium is a state in which the allele frequencies in a population remain constant and do not change over time. This means that the population is not evolving and there is no change in the genetic makeup of the population.
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 does it mean for a population to be in genetic equilibrium?
A population is in genetic equilibrium when allele frequencies remain constant over generations, indicating that there is no evolution occurring. This suggests that the population is not experiencing any genetic drift, gene flow, mutations, or natural selection.
One of the conditions required to maintain genetic equilibrium is?
One of the conditions required to maintain genetic equilibrium is a large population size. This helps to reduce the effects of genetic drift, ensuring that allele frequencies remain stable over generations.
When allelic frequencies remain unchanged a population is in genetic eqilibrium this statement expresses what?
This statement refers to the Hardy-Weinberg equilibrium principle, which states that in the absence of evolutionary forces, allele frequencies in a population will remain constant from generation to generation. This equilibrium condition can be used as a null hypothesis to assess whether a population is evolving.
What is it called when no evolution takes place?
A species that does evolve is an open ended species. One that doesn't is the opposite of that.
What is the type of equilibrium that occurs when allele frequencies do not change?
The type of equilibrium where allele frequencies do not change is called Hardy-Weinberg equilibrium. This equilibrium occurs in an idealized population where certain assumptions are met, such as random mating, no mutation, no migration, no natural selection, and a large population size. In Hardy-Weinberg equilibrium, the genotype frequencies can be predicted using the allele frequencies.
What does being in Hardy-Weinberg equilibrium mean for a population?
The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors. When mating is random in a large population with no disruptive circumstances, the law predicts that both genotype and allele frequencies will remain constant because they are in equilibrium.
What does hardy weinberge equilibrium mean?
Hardy-Weinberg equilibrium is a principle stating that allele frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences like mutation, natural selection, genetic drift, or gene flow. It serves as a null model against which population genetics data can be compared to detect evolutionary forces at work. Deviations from Hardy-Weinberg equilibrium can indicate that evolutionary processes are influencing the population.
What are the conditions a population must meet in order to have genetic equilibrium?
1. No net mutations occur; that is, the alleles remain the same 2. Individuals neither enter nor leave the population 3. The population is large (ideally, infinitely large) 4. Individuals mate randomly 5. Selection does not occur
What is the name of the principle stating that allele frequencies will remain constant unless factors cause them to change?
The principle is called the Hardy-Weinberg equilibrium. It states that in the absence of evolutionary forces such as mutation, selection, gene flow, or genetic drift, allele frequencies will remain constant from generation to generation in a population.
What happens when a population in hardy weinberg equilibrium?
The phenotype frequency does not change
