In chickens, the black wing allele is co-dominant with the white wing allele. Black and white birds are homozygous for the black (B) allele or the white (W) allele.
In genetics the terms, codominance refers to the pattern of inheritance in which the two versions (alleles) of the same gene are being expressed separately to produce the different traits in the individual. In perfect dominance, only the one allele of the genotype is also present in the phenotype. In codominant cases, both the alleles of the genotype are present in the phenotype. In the case of the imperfect dominance, the phenotype shows the mixture of genotypic alleles. In the genetics terms, codominance refers to the pattern of inheritance in which the two versions (alleles) of the same gene are expressed and separately to produce the different traits in the individual.
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Assortative mating is the evolutionary mechanism that changes genotype frequencies but does not change allele frequencies.
Assortative mating is the type where two individuals mate with each other on the basis of their similarities and dissimilarities. This is a different phenomenon than the random mating that occurs by chance. Assortative mating can be used to increase the number of organisms of a population containing a certain trait.
Allele is the alternative form of a gene. It arises due to mutations. A gene can have more than one types of alleles. However, usually a gene only has one allele. The alleles are found at the same location of the homologous chromosomes.
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The answer would be: It would have no effect, because tyrosine is also available from the diet
The pathway is different, alkaptonuria increased tyrosine is caused by decreased usage. In phenylketonuria, it is caused by increased production. While tyrosine is increased in phenylketonuria patient, it won't cause alkaptonuria because tyrosine could be found in the diet.
Answer: The center vacoule
Explanation:
Vacuoles are membrane-bounded vesicles whose functions vary in different kinds of cells. Mature plant cells generally contain a large central vacuole.
The plant cell central vacuole is a varsatile compartment. It can hold reserve of important organic material such as protein stockpiled and inorganic ions. Many plant cells use their vacuoles as a disposal sites for metabolic by-products that would endanger the cell if the accumulate in the cytosol.
Vacuoles may also help protect the plant against predators by containing compounds that are poisonous or unpalatable to animals.
