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An individual with a recessive allele for an undesirable trait is called?
A carrier. This individual may not show the undesirable trait, but can pass on the recessive allele to their offspring.
What is the genotype of a person who is a carrier of a autosomal recessive trait?
The genotype of a person who is a carrier of an autosomal recessive trait is typically heterozygous, meaning they carry one copy of the recessive allele and one copy of the dominant allele for that trait. This would be represented as Aa, with the lowercase "a" representing the recessive allele.
What type of alleles does a carrier have?
A carrier typically has one normal allele (wild type) and one mutated allele for a particular gene. Carriers do not display the symptoms of the genetic disorder associated with the mutated allele, but they can pass it on to their offspring.
When will a trait controlled by a recessive allele be shown?
only when two recessive alleles are present
How does circumstance in which your pheonotype would show a recssive trait?
A phenotype will express a recessive trait when an individual has two copies of the recessive allele (homozygous recessive) and no dominant allele to mask its expression. This occurs when both parents contribute a recessive allele, which can happen if both are carriers of the recessive trait or express the trait themselves. Environmental factors can also play a role in the expression of certain traits, but for genetic recessiveness, the key factor is the allele combination inherited from the parents.
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.
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).
An individual with a recessive allele for an undesirable trait is called?
A carrier. This individual may not show the undesirable trait, but can pass on the recessive allele to their offspring.
What doesn't express a carrier controlled by a trait?
An organism can have/carry a gene but without espressing this gene.
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 the genotype of a carrier of recessive disorder?
A carrier is someone who does not have a disorder but carries the allele on to offspring.
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 the genotype of a person who is a carrier of a autosomal recessive trait?
The genotype of a person who is a carrier of an autosomal recessive trait is typically heterozygous, meaning they carry one copy of the recessive allele and one copy of the dominant allele for that trait. This would be represented as Aa, with the lowercase "a" representing the recessive allele.
What type of alleles does a carrier have?
A carrier typically has one normal allele (wild type) and one mutated allele for a particular gene. Carriers do not display the symptoms of the genetic disorder associated with the mutated allele, but they can pass it on to their offspring.
What is an allele that produces a trait in the heterozygous condition called?
An allele that produces a trait in the heterozygous condition is called dominant. This means that only one copy of the allele is needed to express the trait.
What is a carrier and how does it affects heredity?
A carrier is somebody has has a specific gene trait but does NOT express it.
Which two combinations of allels could produce a trait controlled by a dominant allele?
with TT or Tt
