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What is the probability that a father produces a gamete with the allele for attached earlobes if he has one allele for detached earlobes and one allele for attached earlobes?
50%
What is a recessive allele?
Recessive allele is a trait that doesn't show in one's phenotype (observable trait) if there is a dominant allelle present. Only when you inherit a recessive allele from both parents (aa for example and not Aa) does the trait show in your phenotype.
What is the probability that a particular allele will be in a gamete?
chromosome segregationIf the character is governed by a single allele and it is dominant, than its probability to be in the gamete is 75%.
What is relative allele frequency?
"h@vOk"
What is the probability that each child born to two carriers of a recessive disorder allele will have the disorder?
The child will have the disorder, only if the recessive allele from both the parents is transferred to the child. Therefore, the probability is 1/4.
True or false Mutations are not capable of altering allele frequencies?
False. Mutations can alter allele frequencies by introducing new alleles into a population. If these mutations are beneficial and provide a selective advantage, they can become more prevalent over time through natural selection, thereby affecting allele frequencies.
When microevolution occurs what kind of frequencies change?
allele
Do mutations cause change in allele frequencies within a population?
Yes, they can. Mutation is one of the four main mechanisms of evolution.
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.
Under ideal conditions how do allele frequencies change over time?
Under ideal conditions, allele frequencies can change over time due to genetic drift, natural selection, gene flow, and mutations. These factors can cause certain alleles to become more or less common in a population, leading to changes in allele frequencies. Over many generations, these changes may result in evolution occurring within the population.
Do Stable allele frequencies prevent microevolution?
No, stable allele frequencies do not prevent microevolution. Microevolution involves changes in allele frequencies within a population over time, even if those frequencies are stable for a period. Evolution can still occur through mechanisms such as genetic drift, selection, and gene flow, even if allele frequencies are temporarily stable.
How does mutation work against the Hardy and Weinberg equilibrium?
Mutations introduce new genetic variation into a population, which can disrupt the balance of allele frequencies required for the Hardy-Weinberg equilibrium. If a mutation increases the frequency of a particular allele, it can lead to deviations from the expected genotype frequencies under the Hardy-Weinberg equilibrium.
A change in allele frequencies due to migration?
Migration can lead to changes in allele frequencies by introducing new alleles into a population. When individuals move between populations, they bring their genetic material with them, potentially altering the genetic diversity of the receiving population. Gene flow through migration can increase genetic variation within a population or decrease differences between populations.
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.
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.
A flood kills most of the ants that live near a river. After the flood one population of ants grows rapidly but its allele frequencies are different from the frequencies before the flood. What does th?
The flood likely caused a genetic bottleneck, reducing the genetic diversity of the ant population. The rapid growth after the flood may have allowed new mutations to become more prominent, leading to changes in allele frequencies. This could result in a genetic drift or selection event.
How are alleles frequencies related to gene pools?
The frequency of the allele represents the percentage of that allele in the gene pool
