Color Blindness Types and Characteristics
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Questions and Answers

Where are the genes coding for the pigments responsive to red and green located?

  • X chromosome (correct)
  • Mitochondrial DNA
  • Autosome (chromosome 7)
  • Y chromosome
  • What is the result of a defect in the gene for red in males?

  • Red appears as green (correct)
  • Blue appears as green
  • Red appears as blue
  • Green appears as red
  • What is the condition where an individual has complete red-green color blindness?

  • X-linked recessive inheritance
  • Hemophilia
  • Complete red-green color blindness in females (correct)
  • Anomalous Trichromacy
  • What is the term used to describe the type of inheritance where the genes are located on either the X or Y chromosomes?

    <p>Sex-linked inheritance</p> Signup and view all the answers

    What is the name of the test used to detect color vision deficiency?

    <p>Ishihara color test</p> Signup and view all the answers

    What is the effect of receiving a recessive allele from one's mother for a male?

    <p>The trait will be expressed</p> Signup and view all the answers

    What is the term for a total color blind condition where everything appears in shades of gray?

    <p>Monochromatic</p> Signup and view all the answers

    Which type of color blindness is characterized by the complete absence of the red cone?

    <p>Protanopia</p> Signup and view all the answers

    What is the term for a mild or weak color vision deficiency?

    <p>Anomalous Trichromacy</p> Signup and view all the answers

    Which royal family member had hemophilia?

    <p>Queen Victoria of England</p> Signup and view all the answers

    What is the frequency of Hemophilia A in males?

    <p>1 in 10,000</p> Signup and view all the answers

    What is the name of the disease that affects the blood's ability to clot, leading to easy bleeding?

    <p>Hemophilia</p> Signup and view all the answers

    What is the main reason for excessive bleeding in hemophiliacs?

    <p>Deficiency of factor VIII</p> Signup and view all the answers

    What is the cost of treating hemophilia A with clotting factor VIII extracted from normal human blood?

    <p>Very high</p> Signup and view all the answers

    What is the cause of hemophilia B?

    <p>Deficiency of factor IX</p> Signup and view all the answers

    What is the category of hemophilia A where patients produce less than 1% of Factor VIII?

    <p>Severe</p> Signup and view all the answers

    What is the name of the disease caused by the deficiency of factor V?

    <p>Parahemophilia</p> Signup and view all the answers

    What is the typical age of onset for symptoms of Duchene muscular dystrophy?

    <p>Before age 5</p> Signup and view all the answers

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