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What carrier of a trait controlled by a allele does not express the trait?
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An individual with a recessive allele for an undesirable trait is called?
It is called "carrier".
When will a trait controlled by a recessive allele be shown?
only when two recessive alleles are present
A single individual carries how many alleles for a trait?
It depends on the trait. Some traits are controlled by several alleles. Some traits are simply one of many controlled by a single allele. It also depends and how you correlate the trait with the allele. Sometimes a completely unrelated allele can "turn on" or "turn off" other sets of alleles. This means that the number of alleles associated with a particular trait can ultimately be indeterminable by our current observational methods.
What is a genetic carrier?
A carrier is a person who carries a gene(most-likely for a genetic disorder) but do not have the trait controlled by the gene.
An allele that is dominated or cover up by another allele is called what?
It should be a dominant allele--a dominant allele's trait will be expressed over the recessive allele's 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.
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 doesn't express a carrier controlled by a trait?
An organism can have/carry a gene but without espressing this gene.
How do you know a homozygous trait from a heterozygous trait?
A homozygous trait is controlled by only one kind of allele, while a heterozygous trait is controlled by multiple allele types.
WHAT is single gene trait?
A single-gene trait is a phenotypic trait controlled by two homologous alleles.
An individual with a recessive allele for an undesirable trait is called?
It is called "carrier".
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 carrier of recessive disorder?
A carrier is someone who does not have a disorder but carries the allele on to offspring.
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.
How does a dominant trait affect the phenotype of an organism?
If the the trait is controlled by only one allele and the allele is completely dominant then once inherited the offspring with exhibit that phenotype
How can you tell if someone is a carrier?
If their genotype contains both a dominant and a recessive allele for a trait.
What combination of alleles could produce a trait controlled by a dominant allele?
genotype
