KCET · BIOLOGY · STD 12 - 4. Principles of Inheritance and Variation
Identify the wrong statement.
- A Alleles b and c also produce sugar.
- B Alleles \(I ^{ A }\) and \(I ^{ B }\) produce sugars.
- C When \(I ^{ B }\) and b or i are present \(I ^{ B }\) is expressed.
- D Both \(I ^{ A }\) and \(I ^{ B }\) are present together and they express because of co-dominance.
Answer & Solution
Correct Answer
(A) Alleles b and c also produce sugar.
Step-by-step Solution
Detailed explanation
(A) Alleles b and c also produce sugar.,
ABO blood group in humans is controlled by three multiple alleles \(I ^{ A }, I ^{ B }\) and i . There are two types of antigens present in the surface coating of red blood cells - \(A\) and \(B\). The \(I ^{ A }\) and \(I ^{ B }\) alleles produces enzyme glycosyltransferase for synthesis of sugars. Both \(I ^{ A }\) and \(I ^{ B }\) are codominant (i.e., able to express themselves in presence of each other) but are dominant over \(i\).
ABO blood group in humans is controlled by three multiple alleles \(I ^{ A }, I ^{ B }\) and i . There are two types of antigens present in the surface coating of red blood cells - \(A\) and \(B\). The \(I ^{ A }\) and \(I ^{ B }\) alleles produces enzyme glycosyltransferase for synthesis of sugars. Both \(I ^{ A }\) and \(I ^{ B }\) are codominant (i.e., able to express themselves in presence of each other) but are dominant over \(i\).
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