A qualitative trait is:
Correct answer: B. It is controlled by one gene
- A. Continuously varying trait
- B. It is controlled by one gene
- C. It depends on the quantity of allele
- D. All of the above
Explanation
A qualitative trait is one that can be classified into one of several categories. For example, coat colour dilution, horned or polled, and black or red coat colour are all qualitative characteristics. Qualitative traits are often governed by one or a few genes, indicating that they are inherited traits.
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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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