A phenomenon of gene interaction in which a gene interferes in the effect of another gene is called:
Correct answer: B. Epistasis
- A. Pleiotropy
- B. Epistasis
- C. Over dominance
- D. Co dominance
Explanation
The phenomenon of gene interaction in which a gene interferes with or modifies the expression of another gene is called "epistasis." Epistasis occurs when the effect of one gene (called the "epistatic gene") masks or alters the effect of another gene (called the "hypostatic gene"). This interaction between genes can lead to complex patterns of inheritance and phenotypic outcomes that might not be predictable solely based on the individual gene's effects. Epistasis is a significant factor in understanding the diversity of traits and genetic variations observed in populations.
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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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