science
Grade-11
Easy

Question

Which disorder or disease has alleles that are co-dominant with each other?

  1. Hemophilia
  2. Sickle cell anemia
  3. Cystic fibrosis
  4. Huntington's

hintHint:

Malaria can also cause this disease.

The correct answer is: Sickle cell anemia


    • Sickle cell anemia is an example of codominance
    • Codominance refers to expression of both the alleles of a gene
    • The individuals with sickle cell can have homozygous or heterozygous genes
    • Heterozygous gene containing individuals will have normal hemoglobin and abnormal "S" hemoglobin
    • Homozygous gene containing individuals carry abnormal hemoglobin 

    • Sickle cell disease is a medical condition where the Red Blood Cells loses its normal shape 
    • The disease can be caused due to malaria or due to genetic disorder

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