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What is a person who has one recessive allele for a trait and one dominant allele for the same trait and is able to pass in the trait on to their offspring?
That is heterozygous. Some scientist call these "hybrids"(no joke)The person is heterozygous for that trait and will have the dominant phenotype.An organism with both a dominant and recessive allele for a specific trait is called an heterozygote. They are heterozygous for this trait.
Definition of dominant in science?
In science, particularly in genetics, "dominant" refers to an allele that expresses its trait in the presence of another allele, known as recessive. When an organism has at least one dominant allele for a particular trait, the dominant trait will manifest in its phenotype. This concept is fundamental in understanding inheritance patterns and how traits are passed from parents to offspring.
Which sentence correctly describes the relationship between genes and alleles?
She inherited brown eyes, a dominant allele in both her parents.
What are the different forms of a gene that decide a characteristic known as?
Each allele has two forms which are known as alleles. Alleles play an important role as to which characteristics either from mother or father will be passed along to the next generation. The way in which alleles are expressed is the study of genetics.
How does a recessive trait show up as a visible trait?
Recessive alleles are only expressed in the phenotype if the organism is homozygous for the recessive allele (assuming diploidy). If the trait is sex-linked, then it will always show up in males if passed.
Does natural selection on single-gene trait cannot lead to changes in allele frequencies?
Natural selection acting on a single-gene trait can lead to changes in allele frequencies within a population. If individuals with a certain allele have a selective advantage, they are more likely to survive and reproduce, leading to an increase in the frequency of that allele in the population over time. This process is known as directional selection.
The frequencies of alleles and genotypes remain constant from generation to generation unless?
Unless there are factors such as mutation, genetic drift, gene flow, or natural selection that can cause changes in allele frequencies within a population. This concept is known as the Hardy-Weinberg equilibrium, which describes the conditions under which allele and genotype frequencies remain stable over time in a population.
What is Generation-to-generation change in the allele frequencies in a population?
Generation-to-generation change in allele frequencies in a population is known as evolution. This change can be the result of various factors such as natural selection, genetic drift, gene flow, and mutation. Over time, these processes can lead to the emergence of new traits and variations within the population.
What is it called when there's a change in the gene?
The change of genetic information within an organism is known as a genetic mutation. It may also be refereed to as a change in allele frequencies when populations are examined.
What is the principle or idea that allele frequency will remain constant unless one or more factors cause those frequencies to change?
The principle is known as Hardy-Weinberg equilibrium. It states that in a non-evolving population, allele frequencies will remain constant from generation to generation unless factors such as mutation, natural selection, genetic drift, gene flow, or non-random mating disrupt the balance.
What is The alteration of allelic frequencies by chance processes is known as?
Genetic drift. It refers to the random fluctuation of allele frequencies in a population due to chance events, particularly in small populations. Genetic drift can lead to the loss or fixation of alleles over time.
What is it called when random evolution that occurs in a small separate subpopulation?
This is known as genetic drift. It refers to the random changes in allele frequencies that can occur within a small population due to chance events.
What is random change in allele frequencies in small population?
Random changes in allele frequencies in small populations are known as genetic drift. Genetic drift occurs due to chance events, leading to unpredictable fluctuations in the frequency of alleles within a population. In small populations, genetic drift can have a significant impact and may result in certain alleles becoming more or less common or even being lost altogether over time.
When was On Little Known Frequencies created?
On Little Known Frequencies was created on 2009-03-10.
What is the Random change in a populations allele frequency is known?
Genetic drift is the random change in allele frequencies in a population. It is caused by chance events and has more pronounced effects in small populations where genetic diversity is lower. Over time, genetic drift can lead to the loss of certain alleles or fixation of others in a population.
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.
Generation-to-generation change in allele frequencies in a population is?
The term used to describe the generation-to-generation change in allele frequencies of a population is simply evolution. Simple answer for a complicated-looking question. ;) Hope this helps.
