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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.
Do mutations cause change in allele frequencies within a population?
Yes, they can. Mutation is one of the four main mechanisms of evolution.
Why are mutations are important for evolution?
Mutations are important for evolution because they introduce variation in populations, which is the raw material upon which natural selection acts. This variation allows organisms to adapt to changing environments, leading to the development of new traits and potentially new species over time. Mutations contribute to genetic diversity and drive the process of evolution by providing opportunities for organisms to evolve and survive in different conditions.
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 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.
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.
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 do mutations relate to variations within a population?
Mutations contribute to genetic variation within a population by introducing new alleles. These new alleles can lead to different traits or characteristics, increasing diversity within the population. Over time, natural selection can act on this variation, influencing which traits become more or less common.
When microevolution occurs what kind of frequencies change?
allele
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.
How are alleles frequencies related to gene pools?
The frequency of the allele represents the percentage of that allele in the gene pool
What is the process called when allele frequencies in a population of a species change over time?
Evolution; the change in allele frequencies over time in a population of organisms.
