A continuously varying trait is encoded by:
Correct answer: A. Alleles of two or more different gene pairs
- A. Alleles of two or more different gene pairs
- B. Alleles of a gene pair
- C. Alleles of two or more genomes
- D. Multiple alleles of two or more different gene pairs
Explanation
A continuously varying trait is encoded by two or more different gene pairs found at different loci all influencing the same trait in an additive way. These quantitative traits are called polygenes. Each polygene has a small positive or negative effect on the character.
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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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