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What factor determines whether the frequency of the new allele will increase?
Which factor might determine whether the frequency of the new allele will increase in a population where a mutation occurs?
What is the relationship between evolution allele frequency and population?
Consider an organism as a collection of inherited traits. Now consider each trait to be the expression of a single allele. An allele is a variant of a gene. For instance, if eye colour is coded for by a single gene, then there may be an allele A that codes for blue eyes, and an allele B that codes for brown eyes. A population gene pool, then, is the collection of all alleles present in a population of organisms from a single species. The allele frequency is the number of times a specific allele occurs in the population gene pool. For instance, the allele frequency of the brown-eye allele may be higher than the frequency of the blue-eye allele, meaning that more people have brown eyes than blue eyes, in this simplification.Evolution is measured in terms of changing allele frequencies. For instance, in our example, we could measure the number of people with blue eyes in generation one, and then measure the number again in generation one hundred. If we see a significant shift in frequency, then evolution has occurred.Nota bene: this is not how it works in reality, but it's easier to explain it in such simple terms than if I were to go into the complexities of population genetics.
Why does the allele for albinism present at a lower frequency than the allele for having pigments?
The allele for albinism is typically a recessive trait, meaning an individual must inherit two copies of the allele to express the phenotype. In contrast, the dominant alleles responsible for pigmentation only require one copy to express the trait, leading to a higher frequency of pigment-producing alleles in the population. Additionally, the presence of pigment provides advantages in terms of UV protection and camouflage, contributing to greater reproductive success and survival among individuals with pigmentation. As a result, the allele for albinism remains at a lower frequency due to these genetic and selective pressures.
What is the relation between shrillness of sound and frequency?
The shrillness of a sound is related to its frequency, with higher frequency sounds typically perceived as more shrill or piercing. This is because higher frequency sounds have more rapid vibrations, which our ears interpret as a higher pitch and increased sharpness in tone.
How does this influence the probability of the gamete receiving a dominant allele for pea shape?
If the dominant allele for pea shape is more prevalent in the population, then the probability of a gamete receiving a dominant allele for pea shape will be higher. The frequency of the dominant allele in the gene pool directly affects the likelihood of it being passed on to offspring through gametes during reproduction.
Why is the allele for albinism is present at a lowere frequency than the allele for pigments?
Because the pigments have higher possibility to survive because of their color of skin/fur they could have an easier camouflage and the albinos cant survive that easy.
What would casue a mutated allele to increase in frequency in a population?
If it confered a reproductive advantage to the organism it resided in. This would drive representation of the allele higher in the populations gene pool; increase in frequency.
What factor determines whether the frequency of the new allele will increase?
Which factor might determine whether the frequency of the new allele will increase in a population where a mutation occurs?
A small founding population of a few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly (six fingers). Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
A small founding population of a few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly six fingers Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
In A small founding population few hundred Europeans in North America had an unusually high frequency of an allele that causes polydactyly (six fingers). Many generations that followed had cases of?
The Founder Effect The founder effect is when a few individuals of a species form a new population. The gene pool composition, therefore, is not reflective of the gene pool of the original population. Think of this as a small number of people starting their own colony. This is an example of the Founder effect because Polydactyly is a dominant trait. And in a large population, it will be rare finding a person with a 6th digit. In a smaller population, however, polydactyly has a higher frequency of this allele, because the smaller the population, the higher the sensitivity for inbreeding and lower genetic variation. So, polydactyly (dominant allele) + Increase inbreeding= Higher polydactyly allele frequency.
What is the relationship between evolution allele frequency and population?
Consider an organism as a collection of inherited traits. Now consider each trait to be the expression of a single allele. An allele is a variant of a gene. For instance, if eye colour is coded for by a single gene, then there may be an allele A that codes for blue eyes, and an allele B that codes for brown eyes. A population gene pool, then, is the collection of all alleles present in a population of organisms from a single species. The allele frequency is the number of times a specific allele occurs in the population gene pool. For instance, the allele frequency of the brown-eye allele may be higher than the frequency of the blue-eye allele, meaning that more people have brown eyes than blue eyes, in this simplification.Evolution is measured in terms of changing allele frequencies. For instance, in our example, we could measure the number of people with blue eyes in generation one, and then measure the number again in generation one hundred. If we see a significant shift in frequency, then evolution has occurred.Nota bene: this is not how it works in reality, but it's easier to explain it in such simple terms than if I were to go into the complexities of population genetics.
How does balancing selection affect the sickle cell allele in central Africa?
The sickle cell allele can be maintained in the central African population, above the frequency of gene mutation (balancing selection), because the heterozygous sickle cell individuals have an advantage in lifespan, in this malaria stricken region, over the homozygous alternatives. Homozygous sickle-sickle individuals die early from the sickle cell disease. Homozygous nonsickle-nonsickle die early from malaria. The heterozygous sickle-nonsickle have a higher survival against malaria and therefore the sickle cell allele is balanced selected.
Why does the allele for albinism present at a lower frequency than the allele for having pigments?
The allele for albinism is typically a recessive trait, meaning an individual must inherit two copies of the allele to express the phenotype. In contrast, the dominant alleles responsible for pigmentation only require one copy to express the trait, leading to a higher frequency of pigment-producing alleles in the population. Additionally, the presence of pigment provides advantages in terms of UV protection and camouflage, contributing to greater reproductive success and survival among individuals with pigmentation. As a result, the allele for albinism remains at a lower frequency due to these genetic and selective pressures.
How does pitch lowness of the tone change when frequency is increased or decreased?
When frequency is increased, the pitch of the tone becomes higher. This is because higher frequency vibrations are perceived as higher pitched sounds. On the other hand, when frequency is decreased, the pitch of the tone becomes lower. This is because lower frequency vibrations are perceived as lower pitched sounds.
The characteristic of a sound wave that you hear as pitch is the?
frequency of the wave. A higher frequency corresponds to a higher pitch, while a lower frequency corresponds to a lower pitch. This is because frequency is directly related to the perceived pitch of the sound.
Which will have more energy a high frequency waves or a low-frequency wave?
High frequency waves will have more energy than low-frequency waves. This is because energy is directly proportional to frequency in waves - the higher the frequency, the higher the energy.
