Baldness is most frequent in which of the following?
Correct answer: A. Men
- A. Men
- B. Women
- C. Both A and B
- D. Children
Explanation
Pattern baldness is a sex-linked recessive trait, which indicates that it is carried on the X chromosome. A female inherits one X chromosome from her father. Because the woman's mother does not carry the allele for pattern baldness, the woman only carries one copy of the allele. Therefore men are more likely to go bald as compared to women because they have high levels of testosterone as well.
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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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