Asked in HEC Phase II 2017 2017Moderate

A woman can be bald only when she is

Correct answer: C. Homozygous recessive

  • A. Homozygous dominant
  • B. Heterozygous
  • C. Homozygous recessive
  • D. None of these

Explanation

Pattern baldness is a sex influenced trait. It is inherited as an autosomal dominant trait in males but as an autosomal recessive trait in females. A heterozygous male is bald but a heterozygous female is not. A woman can only be bald when she is homozygous recessive.

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About Mendel's Laws of Inheritance

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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