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A carrier is someone who does not have a disorder but carries the allele on to offspring.
Ardella Ernser
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∙ 13y agoA carrier is a person who has one recessive allele for a trait, but does not have the trait. For example (where colorblindness is the trait [the trait is noted as c):
- Jamal and Kim is a couple. Jamal is colorblind (Xc Y) while Kim is not (X X). Since Jamal has the trait, he will pass the trait down to his children. Kim, on the other hand, does not pass the trait because she doesn't have the trait. Let's say they both of them have a child named Gwen. Gwen is a girl. Since colorblindness is passed down on the X chromosome, Gwen only has one allele for colorblindness (Xc X). She needs both X chromosomes in order to be colorblind. Therefore, she is a carrier. She is not colorblind, but she is able to pass down the trait to her children.
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∙ 8y agoA carrier has one copy of the allele and does not exhibit symptoms.
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∙ 12y agohomozygous for the recessive allele
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∙ 13y agoA. heterozygous for the trait and able
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∙ 11y agoGenetic carrier.
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∙ 11y agopolygenic
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How is a carrier different from a person who has genetic disorder?
A carrier means that you have the gene for the disorder, but because the gene is recessive (meaning that it only shows when you have two recessive genes) and you obviously have a dominant gene as well, you won't show the disorder. Someone who actually has the disorder has two recessive genes. D = dominant gene r = recessive gene Dr = carrier, no signs rD = carrier, no signs DD = not a carrier, no signs rr = has the disorder
What is dominant recessive?
There is dominant and there is recessive. There is no dominant recessive. A dominant gene will always be expressed when present, such as in the homozygous dominant genotype (RR), or heterozygous genotype (Rr). A recessive allele is only expressed when the genotype is homozygous recessive (rr).
What genotype is ff?
recessive
Hemophilia is a sex linked recessive disorder Mary does not have the disease but both of her brothers do Neither of her parents have the disease What are Marys parents genotypes indicates pr?
Mary's father is normal and has a normal genotype XY while her mother is the carrier of hemophilia and has one X of her genotype infected i.e. she is X*X.
Is alkaptonuria caused by a recessive or dominant allele?
Phenylketonuria is an autosomal recessive genetic disorder. The enzyme phenylalanine hydroxylase is necessary to metabolize phenylalanie, but when this enzyme doesnt work, phenylaline accumulates and is detected in the urine. The disease is detected during pregnancy, and if treated right away the newborn can develop normally. However, if left untreated, the brain will not develop properly.
You can be a carrier of a recessive gene as part of your?
You can be a carrier of a recessive gene as part of your genotype.
What is the genotype of a person who is a carrier of a autosomal recessive trait?
heterozygous
How is a carrier different from a person who has genetic disorder?
A carrier means that you have the gene for the disorder, but because the gene is recessive (meaning that it only shows when you have two recessive genes) and you obviously have a dominant gene as well, you won't show the disorder. Someone who actually has the disorder has two recessive genes. D = dominant gene r = recessive gene Dr = carrier, no signs rD = carrier, no signs DD = not a carrier, no signs rr = has the disorder
How can you tell if someone is a carrier?
If their genotype contains both a dominant and a recessive allele for a trait.
Can a person be a carrier for a dominant genetic disorder?
Anyone can be a carrier of a recessive genetic disorder (as long as it is not associated with the sex chromosomes) no matter what their gender since "carrier" refers to an individual that is heterozygous for the recessive allele and therefore phenotypically normal. Specifically, sexlinked genetic disorders can be "carried" by a heterozygous female but males (having only one X chromosome) cannot. Males will either be free of the defective gene or be affected.
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.
Who is a person that is a carrier for a sex-linked recessive disorder?
Usually female.
Is a person who is homozygous recessive for a recessive genetic disese a carrier?
As long as a persons genotype consists of at least one recessive gene, they can pass it on to offspring to give them the disease, which makes them a carrier. Since this persons genes are both recessive, it is definite that they will pass on the recessive gene.
Is cystic fibrosis dominant or recessive?
Cystic Fibrosis is recessive. If you have one CF gene and one non-CF gene, you will be a carrier but not have CF.
What is being carried by a genetic carrier?
A genetic carrier has a dominant and a recessive version of an allele. Normally, the term genetic carrier is used in relation to genetic illnesses where two copies of the recessive allele cause that illness. Therefore, a carrier does not have the illness themself (as the dominant, non-disease allele is expressed over the recessive allele). However, they have the ability to create an offspring who has the double recessive genotype and therefore has the condition if they mate with another carrier or someone who is double recessive (who has the disease).
If you were a carrier of one allele for a certain recessive disorder how could genetic counseling help you prepare for the future?
Well, genetic counseling usually tells someone the consequences of their recessive disorder.
What is dominant recessive?
There is dominant and there is recessive. There is no dominant recessive. A dominant gene will always be expressed when present, such as in the homozygous dominant genotype (RR), or heterozygous genotype (Rr). A recessive allele is only expressed when the genotype is homozygous recessive (rr).
