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What term describes a gene with two dominant alleles that are expressed at the same time?
Co-dominance.
What is Co-dominant Alleles?
Co-dominant alleles are two different versions of a gene that are both fully expressed in a heterozygous individual. This means that both alleles contribute to the phenotype of the organism. An example of co-dominant alleles in humans is the ABO blood group system, where A and B alleles are co-dominant to each other.
At is a gene with two dominant alleles that are expressed at the same time?
In genetics, gene with two dominant alleles that are expressed at the same time is known as codominance. This results in a phenotype where both alleles are equally and fully expressed in the offspring. An example of codominance is the AB blood type in humans, where the A and B alleles are both expressed on the surfaces of red blood cells.
When the alleles of a gene pair are expressed differently but neither is dominant to the other?
Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed.
What is co-dominant disorder?
A co-dominant disorder is a genetic condition where both alleles of a gene are fully expressed, resulting in a phenotype that reflects a combination of both alleles. This can lead to a distinct phenotype that is different from both homozygous states.
When are both alleles expressed in offspring?
Both alleles are expressed in offspring when neither allele is dominant over the other, resulting in co-dominance. This means that both alleles are simultaneously expressed in the offspring's phenotype.
What alleles will be expressed in your phenotype?
The alleles that will be expressed in your phenotype are the ones that are dominant and determine your physical traits. These dominant alleles will be visible in your appearance, while recessive alleles may be present in your genetic makeup but not visibly expressed.
In what alleles can be observed in the phenotype?
you mean phenotype, and its dominant alleles
What are alleles for a particular trait that are always expressed are said to be?
Dominant alleles. Dominant alleles will always be expressed in the phenotype, even if only one copy is present in the genotype.
Is it true that recessive alleles are never present when dominant alleles are present?
No, recessive alleles can still be present in an individual's genetic makeup even when dominant alleles are present. In this case, the recessive allele may not be expressed phenotypically, but can still be passed on to offspring.
What are the circumstances under which dominant alleles will be expressed?
Dominant alleles are expressed when an individual has at least one copy of the dominant allele in their genotype. This means that even if there is a recessive allele present, the dominant allele will be the one observed in the phenotype. Dominant alleles mask the expression of recessive alleles when they are both present in an individual's genetic makeup.
What Happens when genes are neither recessive nor dominant?
When genes are neither recessive nor dominant, they are said to exhibit incomplete dominance or co-dominance. In incomplete dominance, both alleles are expressed in the phenotype, resulting in a blending of traits. In co-dominance, both alleles are fully expressed in the phenotype, leading to a combination of traits.
