Which of the followings is a sex influenced trait?
Correct answer: C. Baldness
- A. Beard growth
- B. Colour blindness
- C. Baldness
- D. Rickets
Explanation
Women have two "X" chromosomes while men have one "X" and one "Y" chromosome. Men inherit their "X" chromosome from their mother and "Y" from their father. Baldness is strongly associate with the AR gene found on the "X" chromosome.
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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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