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If feather color in parrots is made by 1 autosomal gene with 2 alleles F and f The F is blue and f is yellow F allele shows imcomplete dominance over f allele 2 heterozygous Ff green parrots bred?
Wiki User
∙ 14y ago
First, to restate the question in a more comprehensible form:
Feather colour in parrots is determined by a single autosomal gene. The gene has two alleles, F and f. F causes blue feather colour and f causes yellow feather colour. F shows incomplete dominance over f (i.e, a heterozygote has a mixed phenotype, green feathers). If two green parrots, genotype Ff breed, what colour will the offspring be?
This is a basic Mendelian cross. A similar example, with Punnet square, can be seen in the Wikipedia page for 'Mendelian inheritance', Figure 3. This page is a good starting point for understanding the principles involved.
To directly answer the question, 25% of the offspring will be blue (FF), 25% yellow (ff) and 50% green (Ff).
Wiki User
∙ 14y ago
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Heterozygus phenotypes show qualities of both alleles?
Heterozygous phenotypes show qualities of both alleles is called co-dominance.
When both alleles can be observed in a phenotype the interaction is called?
When both alleles contribute to the phenotype of a heterozygous the alleles are said to show the dominate alleles and sometimes the recessive but mostly the dominate alleles
Dominance that occurs whenever the hybrid genotype produces a new intermediate phenotype?
When a heterozygous genotype (two different alleles) results in an intermediate phenotype, this is either codominance or incomplete dominance. If it is codominance, then both alleles are expressed together in the phenotype. If it is incomplete dominance, the two alleles produce a blended phenotype rather than both alleles being expressed together.
What does the principle of dominance state?
Basically, it states there are two forms of a gene called alleles, heterozygous in this case, and one allele masks the expression of the other allele. This is simplified, as it can get complex with co-dominance and partial dominance.
How is co dominance and incomplete dominance similar?
They both express two things simultaneously.
How are codominant alleles and incompletely dominant similar?
Codominance and incomplete dominance can only exist if the genotype has heterozygous alleles.
Heterozygus phenotypes show qualities of both alleles?
Heterozygous phenotypes show qualities of both alleles is called co-dominance.
What is the difference between incomplete dominance and complete dominance?
Complete Dominance: Where in the dominant gene completely masks the effect of the resesive gen in heterozygous conditions. Ex. Tt or Rr. Incomplete Dominance: When 2 or more alleles influence a phenotype. Ex. Flowers. Codominance: When both alleles for a gene are expressed in heterozygous offspring. Ex. Bloodtype.
What is the difference between complete dominance and incomplete dominance?
Complete Dominance: Where in the dominant gene completely masks the effect of the resesive gen in heterozygous conditions. Ex. Tt or Rr. Incomplete Dominance: When 2 or more alleles influence a phenotype. Ex. Flowers. Codominance: When both alleles for a gene are expressed in heterozygous offspring. Ex. Bloodtype.
When both alleles can be observed in a phenotype the interaction is called?
When both alleles contribute to the phenotype of a heterozygous the alleles are said to show the dominate alleles and sometimes the recessive but mostly the dominate alleles
Dominance that occurs whenever the hybrid genotype produces a new intermediate phenotype?
When a heterozygous genotype (two different alleles) results in an intermediate phenotype, this is either codominance or incomplete dominance. If it is codominance, then both alleles are expressed together in the phenotype. If it is incomplete dominance, the two alleles produce a blended phenotype rather than both alleles being expressed together.
What does the principle of dominance state?
Basically, it states there are two forms of a gene called alleles, heterozygous in this case, and one allele masks the expression of the other allele. This is simplified, as it can get complex with co-dominance and partial dominance.
How is co dominance and incomplete dominance similar?
They both express two things simultaneously.
What is it when the presence of two different alleles results in an intermediate?
When a heterozygous genotype (two different alleles) results in an intermediate phenotype, this is either codominance or incomplete dominance. If it is codominance, then both alleles are expressed together in the phenotype. If it is incomplete dominance, the two alleles produce a blended phenotype rather than both alleles being expressed together.
When the heterozygous genotype results in a phenotype where both alleles are fully and separated expressed?
codominance.
How is incomplete dominance expressed in phenotype?
In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.
If both alleles are equally expressed in a heterozygote the relationship is called?
The expression of more than one allele is referred to as incomplete dominance. For example a flower that is heterozygous red and white will have a pink phenotype.
