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When neither allele is dominant, the trait that results depends on whether there is codominance or incomplete dominance.
In codominance, that traits coded for by both alleles are expressed. For example, if R codes for red and r codes for white, a flower with the genotype Rr would be white with red spots/splotches/stripes/etc. (or red with white spots) - so it is showing both traits.
In incomplete dominance - a mixture of the two traits is seen. For example, if R codes for red and r codes for white, a flower with the genotype Rr would be pink (a mixture of red a white).
What else can I help you with?
When neither allele is dominant what are they expressed as?
Both of the alleles must be recessive. The trait expressed is a recessive trait.
How is incomplete dominance different from a dominant and recessive relationship?
Incomplete dominance is a genetic relationship where neither allele is completely dominant over the other. This results in a blending of traits, rather than one trait being dominant and the other recessive. In a dominant and recessive relationship, one allele is fully dominant over the other, leading to the expression of only one trait.
Allele that prevents the expression of a recessive allele?
A dominant 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).
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.
What is it when an allele is neither dominant nor recessive?
When an allele is neither dominant nor recessive, it means that both alleles equally influence the trait. This is known as codominance, where both alleles are expressed in the phenotype of the individual.
When neither allele is dominant what are they expressed as?
Both of the alleles must be recessive. The trait expressed is a recessive trait.
How is incomplete dominance different from a dominant and recessive relationship?
Incomplete dominance is a genetic relationship where neither allele is completely dominant over the other. This results in a blending of traits, rather than one trait being dominant and the other recessive. In a dominant and recessive relationship, one allele is fully dominant over the other, leading to the expression of only one trait.
What does dominant pedigree means?
A dominant pedigree refers to a pattern of inheritance in which a dominant allele on a gene is expressed in the phenotype of an individual, masking the effects of a recessive allele. This results in the dominant trait being exhibited in individuals who inherit at least one copy of the dominant allele.
What is A pattern of inheritance in which neither allele is phenotypically dominant to the other?
incomplete dominance
Allele that prevents the expression of a recessive allele?
A dominant allele
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.
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.
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!
What is it called when neither copy of an allele completely masks expression of the other but instead a blending of alleles is seen?
Incomplete dominance occurs when neither allele is completely dominant over the other, leading to a blending or intermediate phenotype in heterozygous individuals. This results in a phenotype that is distinct from those of the homozygous genotypes.
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.
