Interaction between genes occupying different loci is known as?
Correct answer: C. Epistasis
- A. Dominance
- B. Pleiotropy
- C. Epistasis
- D. None of these
Explanation
Dominance refers to the relationship between two alleles of a gene, where one allele masks or overrides the expression of the other allele in a heterozygous individual. Pleiotropy is a phenomenon in genetics where a single gene affects multiple traits or characteristics. In other words, a mutation in one gene can have multiple effects on an organism's phenotype. When genes are located at different loci, they can still interact with each other in a number of ways. The most common ways that genes at different loci can interact are through epistasis and gene linkage.
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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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