Sex limited trait is:
Correct answer: B. Expressed only in one sex
- A. More common in one sex
- B. Expressed only in one sex
- C. Common in both sexes
- D. All of the above
Explanation
These are genes that occur in both sexes (probably on the autosomes) but are normally expressed only in the gender having the appropriate hormonal determiner (activator). Throughout the pedigree the trait appears in only one sex, but it need NOT occur in all member of that sex.
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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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