Biology Exam Preparation Portal. Preparing with U 4 ur exams...

Pedigree Chart Autosomal Recessive Disorders

Characteristics of Autosomal Recessive Trait:
  • Appears in both sexes with equal frequency.
  • Trait tends to skip generations.
  • Affected offspring are equally born to unaffected parents.
  • When both parents are heterozygous, approximately 1/4 of the offspring will be affected.
  • Appears more frequently among the children of consanguine marriages.
Autosomal recessive trait pedigree chart

Pedigree chart of Autosomal recessive trait

Example of Autosomal recessive Trait

Sickle cell Anemia

Albinism, Cystic fibrosis, Alkaptouria, Phenylketonuria and more
Please Don't Forget to Share... Thank You... Visit Again...


  1. very nice explanation of pedigree and theory ..weldone:)


We love to hear from you! Leave us a comment.

© Biology Exams 4 U, AllRightsReserved.***Best viewed in Google Chrome and Mozilla firefox***

Maintained by