Careers360 Logo
NEET 2024 Countdown - How Many Days Left for NEET Exam 2024

Access premium articles, webinars, resources to make the best decisions for career, course, exams, scholarships, study abroad and much more with

Plan, Prepare & Make the Best Career Choices

Autosomal Dominant & Recessive inheritance pattern - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

Concepts Covered - 0

Determining the inheritance pattern of autosomal recessive disorder
  • The autosomal recessive disorder would be shown by those individuals who have two copies of the disease-causing recessive allele.
  • An individual with a single copy of disease-causing recessive allele would be the carrier for the disease.
  • Parents of an affected individual have to be carriers, that is, heterozygous for the disease-causing recessive allele. They are unaffected but can pass the disorder.
  • When parents are heterozygous, one-fourth of the progeny will be affected.
  • Autosomal recessive disorders tend to skip generations.
  • It appears in males and females with equal frequency.
Determining the inheritance pattern of autosomal dominant disorder:
  • The autosomal recessive disorder would be shown by those individuals who have even a single copy of the disease-causing dominant allele.
  • There are no carriers/heterozygotes for autosomal dominant disorders.
  • It appears in both the sexes with an equal frequency.
  • The disease does not skip a generation.
  • When one parent is affected and the other one is unaffected, one-half of the offsprings will be affected by the autosomal dominant disease.
  • Unaffected parents do not pass the disorder.

"Stay in the loop. Receive exam news, study resources, and expert advice!"

Get Answer to all your questions

Back to top