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Wendy Jauriga
on Dec 07, 2024

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​In Labrador retrievers, dogs with alleles E and B have black fur. Those with an E and two recessive b alleles have brown fur. Dogs homozygous for the recessive e allele have yellow fur. This is an example of _____.

A) ​complete dominance
B) ​incomplete dominance
C) ​codominance
D) ​pleiotropy
E) ​epistasis

Epistasis

Polygenic inheritance, in which a trait is influenced by multiple genes.

Labrador Retrievers

A breed of dog known for its friendly nature, intelligence, and versatility in various roles such as assistance dogs and in search-and-rescue operations.

Alleles

Alternative forms of a gene that occur at the same locus on homologous chromosomes, contributing to genetic diversity.

  • Explain how pleiotropy and epistasis influence the phenotypes of organisms.
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Roland RanceDec 12, 2024
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