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A condition in which both alleles are dominant and cannot mask each other they blend?
Wiki User
∙ 14y ago
Co-dominance.
Wiki User
∙ 14y ago
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What Traits that appear to blend are the result of?
Incomplete dominance (i.e. non of the two alleles are dominant and their effects blend to give the phenotype)
What is the stronger gene for a trait always shows up in the offspring?
Yes, the dominant allele, if present, always overpowers the recessive one. There are exceptions though, when there are two different dominant alleles. These show in the form of co-dominance (two dominant traits that blend) and incomplete dominance (two dominant traits that both appear).
Explain why a trait inherited by incomplete dominance such as the color of appoloosa horses is not a blend of two alleles?
The inheritance of a dominant and a recessive allele results in a blending of traits to produce intermediate characteristics.
When a blend of both alleles are shown in the phenotype of an organism this is an example of?
A heterozygote expresses the traits of both alleles in the phenotypic traits. These traits affect the physical appearance of an organism.
How does codominance work and why does it happen?
Incomplete dominance occurs when a homozygous genotype produces an intermediate, or middle phase before the result. This intermediate is the heterozygous' phenotype.
What is the condition called when two alleles for a trait are both dominant and a blend of the two occurs?
Incomplete Dominance
What Traits that appear to blend are the result of?
Incomplete dominance (i.e. non of the two alleles are dominant and their effects blend to give the phenotype)
What is the stronger gene for a trait always shows up in the offspring?
Yes, the dominant allele, if present, always overpowers the recessive one. There are exceptions though, when there are two different dominant alleles. These show in the form of co-dominance (two dominant traits that blend) and incomplete dominance (two dominant traits that both appear).
Explain why a trait inherited by incomplete dominance such as the color of appoloosa horses is not a blend of two alleles?
The inheritance of a dominant and a recessive allele results in a blending of traits to produce intermediate characteristics.
What is codominant genotype?
When two alleles are codominant, that means that they are expressed simultaneously in different parts. For example, if a red and white flower were crossed, and the resulting flower had some red petals and some white petals that would be codominance. Another example is when animals have stripes and spots. Not to be confused in incomplete dominance, which is when two alleles are expressed simultaneously in the same part of the organism (in the flower example all the petals would be pink).
Why blending inheritance is incorrect even with some features do appear to blend in nature?
The answer to this is that only a few features appear to blend in nature. These traits are controlled by incomplete dominant alleles, which cause both traits to blend together (such as colors). Most traits are inherited based on independent assortment of alleles in meiosis I and the principles of dominant and recessive traits. By definition, the dominant trait masks the recessive trait. Some features, which seem to blend such as skin color, actually follow normal inheritance patterns. Skin color is controlled by multiple genes. The gene either deposits pigment or doesn't deposit pigment. Since multiple genes can deposit pigments, the skin color has a wide range of possibilities. For example, if skin color is controlled by Gene A, B, and C, then here are a few possibilities for genotypes. AaBbCc, AABBcc, aabbcc, etc. So even though there is continuum of color, the inheritance pattern is not "blending"
When a blend of both alleles are shown in the phenotype of an organism this is an example of?
A heterozygote expresses the traits of both alleles in the phenotypic traits. These traits affect the physical appearance of an organism.
What is the genotype for a trait with a mixed pair of alleles?
PHENOTYPE = how the traitphysically shows-up in the organism. ...Heterozygous means one of each allele in the genotype (ex: Cc)
How does codominance work and why does it happen?
Incomplete dominance occurs when a homozygous genotype produces an intermediate, or middle phase before the result. This intermediate is the heterozygous' phenotype.
What is the name of inheritance pattern in which both alleles are expressed equally?
It depends on what you mean by "both are expressed". In order for both alleles to be expressed, both alleles must be dominant alleles. If one allele is recessive, it will be masked. If you are talking about alleles that are co-dominant, then both alleles would be expressed together. Ex: Red x white = red and white flower If you are talking about incomplete dominance, then both alleles are seen as a blend of both in the offspring. Ex: red x white = pink flower If you are talking about multiple alleles (like in human blood typing), then you can see 2 alleles expressed together. Ex: Type A x Type B can produce AB blood type.
When offspring show a blend of the parents traits one allele is dominant over the other?
The results in the offspring hinge on the genetic make up of the parents. Each expressed trait is either the result of a dominant or recessive phenotype. The relative dominance or recessiveness of the alleles doesn't change only the rate at which they are expressed based on the allele present for each obseerved trait in the parents.
How did the two traits combine in the off springs and they blend such as pink flower?
Two traits in two separate flowers genes will sometimes combine into a different color as long as there is not a dominant set of alleles. There are other variables to consideræ like environment can influence how genes express themselves.
