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Mendelian Disorder: Colour Blindness Video Lecture | Biology for JAMB

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FAQs on Mendelian Disorder: Colour Blindness Video Lecture - Biology for JAMB

1. What is colour blindness?
Ans. Colour blindness, also known as color vision deficiency, is a genetic disorder that affects a person's ability to perceive and distinguish certain colors. It is usually caused by a mutation in the genes that are responsible for producing the pigments in the cone cells of the retina.
2. How common is colour blindness?
Ans. Colour blindness is relatively common, affecting approximately 1 in 12 men and 1 in 200 women worldwide. It is more prevalent in males because the genes responsible for colour vision are located on the X chromosome, and males only have one X chromosome.
3. What are the different types of colour blindness?
Ans. The most common types of colour blindness are red-green colour blindness and blue-yellow colour blindness. Red-green colour blindness can further be divided into protanopia (lack of red cone cells) and deuteranopia (lack of green cone cells). Blue-yellow colour blindness, also known as tritanopia, is relatively rare.
4. How is colour blindness inherited?
Ans. Colour blindness is an inherited condition that follows a recessive pattern of inheritance. This means that a person needs to inherit the faulty gene from both parents to be colour blind. If only one parent carries the gene, the child will not have colour blindness but may be a carrier.
5. Can colour blindness be treated or cured?
Ans. Currently, there is no known cure for colour blindness. However, there are certain aids and techniques that can help individuals with colour blindness to better distinguish between colors. These include using special lenses, filters, and smartphone apps designed to enhance color perception. It is important for individuals with colour blindness to undergo regular eye examinations to monitor their vision and seek appropriate support if needed.
224 videos|175 docs|151 tests
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