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What is a person that has one copy of an autosomal recessive allele and does not express the trait?
Wiki User
∙ 10y ago
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Colby Leffler
Wiki User
∙ 13y agoThere are several terms that can describe this person:
- heterozygous dominant: The person has different alleles for a trait, and expresses only the dominant trait.
- hybrid: Gregor Mendel called heterozygous dominant organisms hybrids.
- carrier: A person who carries the recessive gene for a disease, but doesn't have the disease herself, is called a carrier because she can pass on the recessive gene to her children.
Wiki User
∙ 14y agoThat would be a heterozygous individual. (Hh)
Wiki User
∙ 15y agoThey would be considered a carrier. ------------------------------- More precisely a heterozygote. A carrier would imply that the recessive trait causes disease.
Wiki User
∙ 14y agoHe is heterozygous dominant. The dominant trait masks the expression of the recessive trait.
Wiki User
∙ 10y agoI'm pretty sure it's a carrier
Wiki User
∙ 12y agoIt can be heterozygous or homozygous
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What happens to the recessive allele in a heterozygous offspring?
The recessive allele is present, but not shown in complete dominance. This is because the dominant allele is completely dominant over the recessive allele, therefore it is shown, while the recessive allele is hidden.
Is cystic fibrosis controlled by a dominant allele or by a recessive allele?
It is controlled by a recessive allele. The gene encodes a chloride ion channel that is required to make sweat, mucus and a few other things. One copy of the gene is sufficient to prevent cystic fibrosis, and it is only when both copies are defective that the person would have the disease and show symptoms.
Genetic disorders are caused by?
Genetic Disorders are caused By a change in a person's DNA. Recessive alleles is the most human genetic disorder.
What is a genotype with one dominant and one recessive gene?
The genotype of a person with one dominate allele for a gene and one recessive would be expressed as Aa or Yy. You can use any letter you would like except one will be shown as a capital (dominate) and one as a lower case (recessive). This combination is heterozygous for that trait.
A person with a heterozygous gene?
A person with a heterozygous gene has one dominant allele, usually represented by a capital letter, and a recessive allele, which is usually represented with a lowercase letter. So an example of a heterozygous gene would be Rr
Why is it that a person with an allele for a particular trait may not have a phenotype that shows the trait?
a dominant allele will express its trait , as well as be carried by the person. the word carrier is commonly used for a person who bears an allele which does not express itself(i.e. a recessive gene).
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.
What is a person who has recessive allele for a trait but does not express that trait?
They would be considered a carrier. ------------------------------- More precisely a heterozygote. A carrier would imply that the recessive trait causes disease.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
What does it mean that CF is a recessive gene?
The phenotype associated with a recessive gene is only expressed when two copies of the gene are present. For example, if a person has both a recessive allele and a dominant allele for CF, the person does not have CF. The person only has CF if he/she has two copies of the recessive allele.
What is the genotype of a person who is a carrier of a autosomal recessive trait?
heterozygous
A person who has inherited the autosomal recessive disorder called?
Cystic Fibrosis
How are dominant and recessive traits represented?
Autosomal recessive alleles ( both males and females) and X-linked alleles in females always express themselves in homozygous condition. On other hand, X -chromosome linked recessive allele express singly in males.
What is a recessive genes?
Recessive is a relative term used to describe the relationship to another allele termed the dominant allele. That traits of the recessive allele will only be shown if the person has two copies of the recessive allele. If a dominant allele is present, then the recessive trait will not be shown.
What is automasal trait?
With an autosomal recessive inheritance pattern, a person needs to have 2 copies of a gene change to have the condition. In most cases, people with an autosomal recessive condition get one gene change from the mother and one gene change from the father.The parents of a person with an autosomal recessive condition may not have the condition themselves, since each parent only needs to have one copy of the gene change. People with one copy of the gene change are called carriers, who do not have the condition, but are more likely to have children with the condition. Other family members (uncles, aunts, brothers, cousins, etc) may also be carriers.
What is the difference between dominant alleles and recessive alleles?
dominant-appears in first generation recessive-seems to dissapear
What happens to the recessive allele in a heterozygous offspring?
The recessive allele is present, but not shown in complete dominance. This is because the dominant allele is completely dominant over the recessive allele, therefore it is shown, while the recessive allele is hidden.
