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Principles of Inheritance and Variation question

2013 · Q65
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Principles of Inheritance and Variation question

2013 · Q65

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
If two persons with 'AB' blood group marry and have sufficiently large number of children, these children could be classified as 'A' blood group : 'AB' blood group : 'B' blood group in 1 : 2 : 1 ratio. Modern technique of protein electrophoresis reveals presence of both 'A' and 'B' type proteins in 'AB' blood group individuals. This is an example of :
  1. A
    Codominance
  2. B
    Partial dominance
  3. C
    Incomplete dominance
  4. D
    Complete dominance
View written solutionFree

Correct answer: A

ABO blood group system in human beings is an example of codominant, dominant recessive and multiple alletes. Blood groups are controlled by the gene I located on 9th chromosome that has 3 multiple alleles, out of which any two are found in a person. In codominance both gene express it self completely

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