What is true about pattern baldness?
Correct answer: C. It is autosomal dominant disease in males
- A. It is autosomal recessive disease in males
- B. It is X-linked disease
- C. It is autosomal dominant disease in males
- D. It is Y-linked disease
Explanation
Explanation:It is a autosomal dominant disease in males, but it is sex influenced character as a result a female heterozygous for this trait will not show this character.Patten baldness, also known as androgenetic alopecia, is not an autosomal recessive disease.This option is also incorrect. Pattern baldness is not an X-linked disease.This option is also incorrect. Y-linked diseases are rare and are passed on exclusively from fathers to their sons, which is not the case for pattern baldness.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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