Albinism

Why albinism is recessive disease?

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2013-04-21 19:16:37
2013-04-21 19:16:37

Albinism is a genetic trait that causes the body not to produce melanin normally... Melanin is a pigment that's responsible for the darker colors like brown, tan, black in our skin and hair...

As you said it's recessive... this is because in order for an individual to be an albino they have to have inherited 2 copies of the recessive, albino causing gene (aa). If they only inherit one (Aa) they will still produce melanin normally, so their skin and hair will be fully pigmented.

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since Albinism is recessive disease, their genotype would be ''bb''.

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It is controlled by a recessive allele.

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no, it is a recessive disorder

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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.

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Albinism is a recessive, autosomal trait. So no, it is not sex-linked.

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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.

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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.

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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.

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In 1908 Archibald Garrod discovered the disease albinism.

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Wilson's disease is recessive

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Albinism is a recessively inherited disease. People with albinism has inherited 2 albinism genes. They got one gene from each parent.

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'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.'

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Normally both parents have to have the recessive gene for the particular trait that causes complete or partial albinism. Therefore it will appear more frequently in families with a history of albinism.

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no albinism is a hereditary.

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Yes. Both parents must carry the gene. The gene can be recessive.

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Yes, Albinism is a recessive trait. You may be carriers of it but it doesn't necessarily mean that your child will have it. Your parents could have been carriers of it but not had it. The albinism just happened to be mixes into your genes.

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Albinism lasts a lifetime. A person is born with it and will always have the disease since there is no cure.

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genetically albinism is an autosomal recessive gene which in fact gives the child a 25% chance of inheriting the gene if both parents are carriers

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Crohn's Disease is not hereditary and is not based on dominant or recessive traits.

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albinism - only apparent when the parents are each either albino or carriers, and the offspring inherits two recessive genes.

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I think albinism still exists I have heard of some cases about it. Albinism is an inherited condition that is present at birth. Read more at: http://www.answers.com/topic/albinism == Albinism results from the inheritance of recessive alleles. The condition is known to affect mammals (including humans), fish, birds, reptiles and amphibians. The principal gene which results in albinism prevents the body from making the usual amounts of the pigment melanin. Most forms of albinism are the result of the biological inheritance of genetically recessive genes that are passed on from both parents, although some rare forms are inherited from only one parent.

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Albinism is not a disease. People with albinism have little or no pigment in their eyes, skin, or hair. They have inherited altered genes that do not make the usual amounts of pigmment called melanin. Albinism affects people from all races. Most children with albinism are born to parents who have normal hair and eye color for their ethnic backrounds. There are different types of albinism, but all forms are associated with vision problems.


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