The B allele confers black coat color and the b allele brown coat color in Labrador dogs. When another gene, E, is inherited, the coat is golden no matter what the B phenotype is. A dog of genotype ee expresses the black phenotype. What unusual phenomenon is at work in this disorder?

Q: In Alaskan Malamute dogs, an autosomal recessive allele causes a condition in which the cartilage in…

A: There are two characters the height and the shape of tail. Let's represent the dominant allele for…

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A: Some phenotypes are determined by the additive effect of 2 or more genes on a single character.

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Q: How can a phenotype be purple and brown, for example, at the same time?

A: A character which is distinguish physical is said to be phenotypic character

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Q: In mice, coat color is due to the inheritance of three genes located on three different chromosomes.…

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Q: Explain why most loss-of-function alleles (hypomorphic or amorphic) are recessive to wild-type…

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Q: On the basis of these results, is the burnsi phenotype most likely inherited as a dominant trait or…

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Q: Several loci affect hair development in dogs. The allele for wire hair (W) is dominant to its allele…

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Q: The phenotypes and genotypes that result from a cross of Aa and aa (A = normal pigmentation and a =…

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Q: For an individual expressing the dominant phenotype, explain why you must list two possible…

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.