### Understanding Non-Mendelian Patterns of Inheritance: Epistasis in Labrador Retrievers**LO19 Analyze a cross and identify non-Mendelian pattern of inheritance in non-allelic genes (normal interaction vs epistasis)**#### Genetic Determination of Hair Color in Labrador RetrieversHair color in Labrador retrievers is determined by alleles at two loci: the B locus and the E locus.- The **B locus** contains alleles that encode different pigments: - **B (dominant allele)**: Encodes black pigment. - **b (recessive allele)**: Encodes brown pigment.- The **E locus** affects the deposition of the pigment in the hair shaft: - **E (dominant allele)**: Allows the deposition of dark pigment (either black or brown), resulting in a dark-colored coat. - **e (recessive allele)**: Prevents the deposition of dark pigment, causing the hair to be yellow regardless of the alleles present at the B locus.#### Question: What Type of Gene Interaction Does This Represent?Below are the options for the types of gene interaction:- **duplicate recessive epistasis**- **normal non-allelic gene interaction**- **recessive epistasis**- **dominant epistasis**- **normal allelic gene interaction**In this context, the presence of the recessive allele (**e**) at the E locus prevents the deposition of dark pigment regardless of the alleles present at the B locus, leading to yellow hair. This represents a specific type of gene interaction known as **recessive epistasis** where the recessive allele at one locus (E) masks the expression of alleles at a second locus (B).#### Correct Answer:- **Recessive epistasis**By understanding these genetic interactions, we can predict the phenotypes of Labrador retriever offspring based on their genotypes at the B and E loci. This type of genetic analysis provides insights into more complex patterns of inheritance that go beyond Mendelian inheritance.

Name: ### Understanding Non-Mendelian Patterns of Inheritance: Epistasis in
Uploaded: 2024-03-20T06:43:04.000Z
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Description: ### Understanding Non-Mendelian Patterns of Inheritance: Epistasis in Labrador Retrievers**LO19 Analyze a cross and identify non-Mendelian pattern of inheritance in non-allelic genes (normal interaction vs epistasis)**#### Genetic Determination of H