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When the alleles of a gene pair are expressed differently but neither is dominant to the other?
Wiki User
∙ 13y ago
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.
Micheal Hoeger
Wiki User
∙ 13y agoThe alleles are co-dominant and traits of both alleles will be apparent in the phenotype.
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What is a condition in which both alleles for a gene are fully expressed?
both the alleles are expressed when the alleles are co-dominent, which means neither is dominant or recessive and cannot be masked. SOme examples are blood type. Type AB blood type is one co-dominent allele for a (Ia) and one for b (Ib).
Genetic trait that is expressed when it's allele is homozygous or heterozygous?
The complete expression of both alleles (i.e. for example, a black and white cow), is known as co-dominance, when each allele is equally dominant over the other. However, both alleles may be expressed in the form of an intermediate as well (i.e. white and red alleles forming a pink intermediate for flower petals), known as incomplete dominance, when neither allele is completely dominant over the other.
Some alleles are neither dominant or recessive and many traits are controlled by what?
Each person has two alleles of one particular gene, which controls one particular characteristic, such as a person's blood group. An allele may be either dominant, recessive, or codominant. A dominant allele would dominate the other allele in the chromosomes, meaning only the dominant allele would contribute to an organism's characteristics. An example of this is the A blood group, which is dominant to the O allele. However, if an individual has both A and B alleles, A and B are codominant, as they both exhibit effects on an organism's characteristics (the blood group). This results in an AB blood group - a combination of the effects of two genes!
How would you write an allele that is heterozygous?
Representing heterozygote allele characteristics depends on the nature of the heterozygote.If one of the alleles is dominant, and the other recessive, the genotype is written as Aa - where the capital letter (A) represents the dominant allele, and the lower case letter (a) represents the recessive allele. The dominant (upper case) allele is always written first.However, the genotype cannot be written in this way if both alleles are codominant (neither one is dominant or recessive). In this case, the convention is to choose a letter to refer to the flower-color-locus as a whole. You would then add different superscript letters to denote the different alleles.For example, you could choose the letter A to refer to the flower-color-locus, and then choose C and D as the two co-dominant alleles. This genotype would be written as ACAD.
Is unibrow dominant or recessive?
its neither. its a learned skill. i can do it, and i learned to by holding one eyebrow up, with my finger, and learning to adapt from that. you use muscle in your face when you do it. if you want to learn, wrinkle your forehead that will help you.
When neither allele is dominant what are they expressed as?
Both of the alleles must be recessive. The trait expressed is a recessive trait.
When neither allele is dominant (they are both expressed)?
Both of the alleles must be recessive. The trait expressed is a recessive trait.
Is this true or false in codominance the alleles are neither dominant nor recessive?
True - in codominance neither allele is dominant or recessive. Codominance results in both alleles being expressed in the phenotype (characteristics of the organism). For example, if R is red and W is white - a flower with the genotype RW would have white petals with red patches (or something similar).
What is it when an allele is neither dominant nor recessive?
this is called codominance when alleles are neither dominant or recessive.
Alleles are neither dominant nor recessive?
codominance
When neither gene in a genotype pair is dominant and neither gene is recessive the genes are said to be .?
Incomplete dominant alleles.
If the alleles are neither dominant or recessive what happens?
If neither are Dominant Or Recessive then its called co dominance or spuedo - dominance
How is it possible to have neither allele dominant?
You have two recessive alleles
Is it true that in co dominance neither of the alleles is dominant or recessive?
True - in codominance neither allele is dominant or recessive. Codominance results in both alleles being expressed in the phenotype (characteristics of the organism). For example, if R is red and W is white - a flower with the genotype RW would have white petals with red patches (or something similar).
What is it called when the alleles are neither dominant nor recessive?
Incomplete Dominance.
What is codominance?
It's like incomplete dominance, but instead of one allele not being completely dominant for a trait, both alleles for that specific trait are dominant.A condition in which neither of two alleles of a gene is dominant nor recessive
What contrasting alleles may in some cases result in a case where neither allele is dominant over the other?
If both alleles are recessive, then you will haev a case where contrasting alleles that do not have dominance. Neither allele has the power to be dominant so they will both have equal power of genetics.
