MDCAT Biology MCQ #661

A medical report describes a transport protein in red blood cells. How is the quaternary structure of this protein organized?

MDCAT Biology MCQ #661

  1. Question 1

    Q1. A medical report describes a transport protein in red blood cells. How is the quaternary structure of this protein organized?

    • A) Two alpha and one beta chain
    • B) Two alpha and two beta chains
    • C) One alpha and three beta chains
    • D) Four alpha chains

    Answer: Two alpha and two beta chains

    Explanation: Haemoglobin consists of two alpha chains (141 amino acids each) and two beta chains (146 amino acids each).