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What are the genetic conditions that are controlled by a recessive allele?
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When will a trait controlled by a recessive allele be shown?
only when two recessive alleles are present
If a genetic defect is cause by a recessive alleles how can potential parents determine the likelihood that they carry the allele?
Genetic testing
What does recessive allele disorders mean?
Recessive allele disorders are just as they sound - they are disorders that are a result of a prevalent recessive allele in one's genetic makeup. A recessive allele disorder will rarely occur since it is dependent on the crossing of two heterozygous parent cells, but it can lead to interesting consequences. An example of a recessive allele disorder is hemophilia - the body's inability to clot blood - and it has affected much of the European royalty in history, such as Queen Victoria of Great Britain.
Does a recessive allele need another recessive allele to be expressed?
I think if an allele "want" to be expressed, then it has to have a dominant allele. They don't need another recessive allele.
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
Is albinism controlled by a dominant allele o recessive allele?
It is controlled by a recessive allele.
Is albinism controlled by a dominant allele or by a recessive allele?
Recessive allele.
What combination of alleles could produce a trait controlled by a recessive allele?
recessive + recessive or tt
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).
When will a trait controlled by a recessive allele be shown?
only when two recessive alleles are present
Are smile dimples controlled by a recessive allele?
Nope, the alleles for smile dimples are actually dominant, not recessive.
What is allele masked by the dominant allele?
The Allele That Is Covered By The Dominant Allele Is The Recessive Allele.
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.
If a genetic defect is cause by a recessive alleles how can potential parents determine the likelihood that they carry the allele?
Genetic testing
In humans heterozygotes are referred to as particularly when the recessive allele is associated with a genetic disease?
carriers
What does recessive allele mean?
Recessive allele disorders are just as they sound - they are disorders that are a result of a prevalent recessive allele in one's genetic makeup. A recessive allele disorder will rarely occur since it is dependent on the crossing of two heterozygous parent cells, but it can lead to interesting consequences. An example of a recessive allele disorder is hemophilia - the body's inability to clot blood - and it has affected much of the European royalty in history, such as Queen Victoria of Great Britain.
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.
