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What conditions would be necessary for the albino allele to be more frequent?
Wiki User
∙ 10y ago
Albinoes or non albino people carrying one albino gene would have to reproduce more.
Wiki User
∙ 10y ago
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Can two white people have an albino baby?
Albinism is a recessive trait, meaning that an albino person has the genotype AA, while a person who isn't albino has the trait Aa or AA. Two albino people (AA x AA) will have all albino children. Aa x AA will have a 50% probability of albino children, and 50% normal children who are carriers (Aa). AA x AA will have all normal children who are carriers (Aa). Aa x Aa will have 25% AA (normal/non carriers), 25% AA (albino), and 50% Aa (normal/carriers) offspring. AA x AA will have all normal children who are not carriers (AA).*A person who has the genotype Aa is a carrier because they carry the allele (a) for albinism but they are not albino. The allele (A) is dominant so it covers the (a) allele.
When an allele mask the presence of another allele it is said to be?
Dominent. Simple- you have two types of Alleles, Dominent and Reccessive. Imagine a punnet square for the allele that causes albinoism (A). One parent has Aa, or one dominent allele and one reccessive allele for the trait. If the dominent skin-tone gene wasn't there (A), then it would be AA and he would be an albino. But since he has a dominent allele, he has normal color. If he made a baby with another Aa combination, they would have 25% chance of having an AA baby with no reccessive allele, a 50% chance of having an identical Aa combination, and a 25% chance of having an albino baby, AA.
In nature genetically albino plants genotype gg do not survive long enough to produce seeds. Why do you thing some plants still carry the mutant g allele?
It may not be a "mutant" allele but a recessive allele that offers other (perhaps yet-unknown) benefits. Or, it has never caused a significant enough problem to have evolved out of the genome.
What is allele masked by the dominant allele?
The Allele That Is Covered By The Dominant Allele Is The Recessive Allele.
Why is it not necessary when the dominant and recessive traits are known to use the term homozygous when referring to the genotype of an individual that has a recessive phenotype?
An organism with a recessive allele from a particular form of a trait will exhibit that form only when the dominant allele for the trait is not present.
Where is the sickle-cell allele most frequent?
Around the mediterranean sea.
Where is the sickle cell allele most frequent?
Around the Mediterranean Sea.
Where is sickle cell allele most frequent?
Around the Mediterranean Sea.
If a allele is masked is it recessive?
If an allele is masked, it is most likely recessive, but not necessarily. This is due to epistasis, the interaction between two or more genes to control a single phenotype. For example, "K" codes for more keratin pigment in the skin, but "k" does not. One can still be albino, however, for if they get the dominant "A" allele, this allelle will override and mask the dominant "K" pigment in the skin, making the person albino.
A cross between two albino people can result in how many albino of spring?
Albinism comes from recessive alleles, so 100% of the children will be albino if both parents are. On the rare event of a germline mutation in this allele in the parents' gametes, there may be a non albino child. Some animals are now entirely albino, google "blind cave tetra".
Can two white people have an albino baby?
Albinism is a recessive trait, meaning that an albino person has the genotype AA, while a person who isn't albino has the trait Aa or AA. Two albino people (AA x AA) will have all albino children. Aa x AA will have a 50% probability of albino children, and 50% normal children who are carriers (Aa). AA x AA will have all normal children who are carriers (Aa). Aa x Aa will have 25% AA (normal/non carriers), 25% AA (albino), and 50% Aa (normal/carriers) offspring. AA x AA will have all normal children who are not carriers (AA).*A person who has the genotype Aa is a carrier because they carry the allele (a) for albinism but they are not albino. The allele (A) is dominant so it covers the (a) allele.
The number of times an allele occurs in a gene pool?
Think frequent. More of the allele in the populations gene pool and there is a change in the alleles frequency. Some goes for less of the allele.
When an allele mask the presence of another allele it is said to be?
Dominent. Simple- you have two types of Alleles, Dominent and Reccessive. Imagine a punnet square for the allele that causes albinoism (A). One parent has Aa, or one dominent allele and one reccessive allele for the trait. If the dominent skin-tone gene wasn't there (A), then it would be AA and he would be an albino. But since he has a dominent allele, he has normal color. If he made a baby with another Aa combination, they would have 25% chance of having an AA baby with no reccessive allele, a 50% chance of having an identical Aa combination, and a 25% chance of having an albino baby, AA.
In nature genetically albino plants genotype gg do not survive long enough to produce seeds. Why do you thing some plants still carry the mutant g allele?
It may not be a "mutant" allele but a recessive allele that offers other (perhaps yet-unknown) benefits. Or, it has never caused a significant enough problem to have evolved out of the genome.
What colors will the offspring of a black cat carrying a white allele and a purebred white cat be?
There is no such thing as a "purebred" white cat. White and black are just colours, not breeds. For a start, there are two genes that can make a cat white: The usual being dominant and therefore cannot be carried by a black cat, and the recessive albino. My guess is we are only talking about the recessive allele, so we have a black cat carrying albino (Cc) and a pure albino (cc). In this case half the kittens would be white (cc) and half would be black (Cc). Forgetting the albino gene, the black cat would not be carrying white at all (ww), the pure white cat would be dominant (WW), and all the offspring would be white (Ww). In life I would say the purewhite cat is most likely dominant and if the black cat carries the albino allele or not it makes no difference; all offspring would be white.
What conditions would you expect allele frequency's to stay the same?
Equal fitness in a population
Under what conditions would you expect allele frequencies to stay same?
Equal fitness in a population
