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The IB allele is considered dominant to the i allele because it produces a functional enzyme that adds the B antigen to the surface of red blood cells, while the i allele does not produce any antigen. This means that when both alleles are present (IBi), the B antigen is expressed, resulting in the phenotype associated with the IB allele. In contrast, the presence of the i allele does not affect the expression of the B antigen, making IB phenotypically dominant.
What else can I help you with?
When on e allele of a gene masks the presence of the other allele what form is masked?
The recessive allele.
A child who inherits IA from his mother and IB from his father will have type?
A child who inherits the IA allele from their mother and the IB allele from their father will have type AB blood. This is because the IA and IB alleles are co-dominant, meaning that both alleles are expressed equally in the phenotype. As a result, the child will exhibit characteristics of both blood types, leading to the AB classification.
Does recessive allele is expressed if there is no dominant allele present?
Yes, a recessive allele will be expressed if there is no dominant allele present in the genotype. This is because in the absence of a dominant allele, the recessive allele has the opportunity to be expressed in the phenotype.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
What is am example of a dominant allele?
A dominant allele is the allele which expresses itself morphologically.for example;the dimple on your cheek.your mom has a dimple whereas your father doesn't have it .but you too possess it.then ,your mother's allele serves to be the dominant allele.
Allele that prevents the expression of a recessive allele?
A dominant allele
IA and IB are dominant to?
IA and IB is dominant to ii or sometimes preferred IO.
How do you find the possible genotypes of the children of a woman with blood type O and a man with blood type AB?
There are three alleles for blood type which can be represented by IA, IB, and i. A person with blood type O has the genotype ii. A person with blood type AB has genotype IAIB. If these two people produce children, those children will inherit one allele from each parent. They will therefore certainly inherit the i allele from their mother and either the IA or the IB from their father. The children with the genotype IAi will have type A blood, since the IA allele is dominant to the i allele. The children with the genotype IBi will have type B blood, since the IB allele is also dominant to the i allele.
What is allele masked by the dominant allele?
An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).
When on e allele of a gene masks the presence of the other allele what form is masked?
The recessive allele.
In one allele is dominant to a recessive allele?
In a dominant-recessive allele relationship, the dominant allele will be expressed phenotypically over the recessive allele. This means that even if an organism carries one dominant and one recessive allele for a particular trait, the dominant allele will determine the observable characteristic.
Which is the dominant allele?
The dominant allele is the trait that shows up in the organism when the allele is present
A child who inherits IA from his mother and IB from his father will have type?
A child who inherits the IA allele from their mother and the IB allele from their father will have type AB blood. This is because the IA and IB alleles are co-dominant, meaning that both alleles are expressed equally in the phenotype. As a result, the child will exhibit characteristics of both blood types, leading to the AB classification.
Allele that is always expressed if present?
An allele that is always expressed when it is present is the dominant allele.
What is it Dominant allele What is a recessive allele?
A genotype in which there are both a dominant and a recessive allele is called heterozygous.
Does recessive allele is expressed if there is no dominant allele present?
Yes, a recessive allele will be expressed if there is no dominant allele present in the genotype. This is because in the absence of a dominant allele, the recessive allele has the opportunity to be expressed in the phenotype.
What is caused by a dominant allele located on an autosome?
A dominant allele located on an autosome will be expressed phenotypically in the individual, meaning it will be visible in the physical characteristics of the organism. This dominant allele will mask the effects of any recessive allele at the same locus.
