Question:
Red green colourblindness is a sex linked trait. Which of the given statements is not correct regarding colourblindness ?
Red green colourblindness is a sex linked trait. Which of the given statements is not correct regarding colourblindness ?
Updated On: Jul 28, 2022
- It is more common in males than in females
- Homozygous recessive condition is required for the expression of colourblindness in females
- Males can be carriers of the trait
- Colourblind women always have colourblind father and always produce colourblind son
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The Correct Option is C
Solution and Explanation
Since colourblindness is a sex-linked recessive trait and males just have one $X$ chromosome, they can never be the carriers. Males will always express the disease/phenotype.
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Concepts Used:
Mendelian Disorders
Mendelian Disorder is a type of genetic disorder that is caused due to alterations in one gene or abnormalities in the genome. These disorders can be seen since birth and can be deduced using the Pedigree Analysis.
