Asked in FBISE Biology 2023 — Paper 1 2023Moderate

Baldness is more common in males than in females because it is a

Correct answer: A. Sex-influenced trail

  • A. Sex-influenced trail
  • B. Sex-limited trait
  • C. Y-linked trait
  • D. Sex linked recessive trait

Explanation

Sex-influenced traits are autosomal traits that are influenced by sex. If a male has one recessive allele, he will show that trait, but it will take two recessive for the female to show that same trait. One such gene is baldness. A lot of sex-limtied traits can determine parental carriers by using a pedigree.

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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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