MDCAT Biology MCQ #790

A child with sickle cell anemia has a point mutation where glutamic acid is replaced in the hemoglobin chain. Which amino acid takes its place, causing the disease?

MDCAT Biology MCQ #790

  1. Question 1

    Q1. A child with sickle cell anemia has a point mutation where glutamic acid is replaced in the hemoglobin chain. Which amino acid takes its place, causing the disease?

    • A) Valine
    • B) Glycine
    • C) Alanine
    • D) Serine

    Answer: Valine

    Explanation: Valine replaces glutamic acid in sickle cell anemia, altering the primary structure. Glycine is the simplest amino acid but is not the substitute here.