Two different gene pairs, located at different loci, all work for the same trait and express in an additive manner. This phenomenon is called:
Correct answer: B. Polygenic inheritance
- A. Codominance
- B. Polygenic inheritance
- C. Multiple alleles
- D. Incomplete dominance
- E. Epistasis
Explanation
Polygenic inheritance is a form of genetic inheritance where multiple genes (often located on different chromosomes) contribute to a single phenotype or trait. This results in a continuous range of phenotypic variation, rather than discrete categories.
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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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