Moderate

When a gene pair at one locus interacts with another gene at another locus, the interaction is called:

Correct answer: D. Epistasis

  • A. Dominance
  • B. Multiple Alleles
  • C. Pleitropy
  • D. Epistasis

Explanation

Epistasis is when a gene at one locus alters the phenotypic expression of a gene at a second locus.

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About Inheritance

Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.

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