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The photo below shows an albino offspring from a non-albino mother. If albinism is a recessive trait, what are the possible genotypes of the mother, the father, and the offspring?
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It could be that the dad is albino but the mom isn’t.
Raniah Davis
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Albinism is a recessive trait in humans that is controlled by a single gene how many recessive alleles must a person have to have albinism?
2
What is an example of recessive trait?
'Albinism' (being an albino, without skin pigmentation) is an example of a recessive trait. Specifically, it is an expressed recessive trait, because that person does not have the dominant gene at all, only two copies of a recessive gene. For a person to be an albino, his/her parents BOTH had to have the recessive gene and the offspring had to inherit THOSE TWO copies and can now only 'express' the recessive gene. There is no dominant gene to undo the albino trait. Side note: there is more than one form of albinism recognized in medical science, but all are examples of recessive traits. Another example of a recessive trait would be 'sickle-cell disease/anemia.'
When is the only time a recessive phenotype can be observed?
A recessive phenotype can only be observed when the individual carries both the recessive alleles for the specific trait.
If a heterozygous male mates with an albino female what percentage of children will be albino?
Albinism is a sex-linked trait. Accordingly, the description of "heterozygous male" doesn't make sense. The sex chromosomes for males are XY, and usually genetic disorders are passed down by the X chromosome (which is the case for albinism). So in the problem, we aren't sure whether the male is XaY or XAY. It would be more helpful to know if the male was albino or not; we would then immediately know his genotype. We can, however, figure out the genotype of the female. Because albinism is recessive, we can deduce that her genotyple is XaXa. But without knowing the male's genotype or phenotype, the offspring percentages cannot be calculated.
What are the chances of having an albino child if the mother is white and the father is black?
Both parents must be carriers of the recessive "albinism" gene. For people who do not have albinism, there is only a 1 in 100 chance that they are carriers of the recessive gene. If both parents are normally pigmented, that is, neither one of them has albinism, but they both happen to be carriers of the recessive "albinism" gene. Then there is a 1 in 4 chance they will have a child with albinism each time they concieve. One person in 17,000 in the U.S.A. has some type of albinism.
Albinism or the lack of color is a recessive trait that is present in some plants Cross two carriers for albinism If 500 plants resulted from the cross what percent of offspring would be expected?
25%
Is albinism a dominat or reccesive trait?
Albinism is a recessive trait which will result in a lack of pigmentation in the skin eyes and hair. It occurs about 1 in every 17,000 people in the U.S.
What is the genotype of an individual with albinism?
I think no. It's caused by a recessive gene so if a person has albinism their genotype can only be recessive, recessive ---> AA (small a small a or whatever you call it). No other genotype will mean that person has Albinism, like if it has at least one big A, that means it's just a carrier of albinism.
Albinism is a recessive trait in humans that is controlled by a single gene how many recessive alleles must a person have to have albinism?
2
Is albinism controlled by a dominant allele or by a recessive allele?
Recessive allele.
Is albinism autosomal?
Albinism is a recessive, autosomal trait. So no, it is not sex-linked.
What might happen if mouse color was not passed from parent to offspring?
The parent had a recessive gene or a gene with incomplete dominance. The rare case of albinism may also be the cause.
Is albinism a recessive trait or dominant?
Recessive. The trait will only show up if both parents have the gene recessively (aa). If the genetic make up is Aa or AA, there will be melanin production, meaning albinism is an aa gene only. Albinism is a recessive allele.
How can albinism in plants keep occurring if they cannot reproduce?
because the recessive allele is still present in heterozygous individuals. these individuals have one dominant allele and so show the dominant phenotype but they are capable of producing offspring with the recessive condition
What is a condition that is shown only when two recessive alleles are present?
Recessive trait...
Is albinism controlled by a dominant allele o recessive allele?
It is controlled by a recessive allele.
What results from a recessive gene that prevents the making of pigments?
albinism
