When an effect caused by a gene or gene pair at one locus interferes with or hides the effect caused by another gene or gene pair at another locus, the phenomenon is called
Correct answer: C. Epistasis
- A. Bombay phenotype
- B. Codominance
- C. Epistasis
- D. Pleiotropy
Explanation
Epistasis is a circumstance where the expression of one gene is modified (e.g., masked, inhibited, or suppressed) by the expression of one or more other genes. Example: A good example of epistasis is coat color in the popular dog breed the Labrador retriever. Labrador retriever coat color genes only come in black or chocolate.
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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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