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With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]
- a)three alleles, all of which are recessive
- b)three alleles, of which, two are recessive and the third is dominant
- c)three alleles, of which two are codominant and the third is recessive
- d)three alleles , all of which are codominant
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
With respect to the ABO group, there are four major blood types becaus...
Blood group is determined by three alleles - IA, IB, and Io. Alleles IA and IB are codominant. Blood group A is determined by IA IA or IA Io. Blood group B is IB IB or IB Io. Blood group O is Io Io. Blood group AB is IA IB.
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With respect to the ABO group, there are four major blood types becaus...
Explanation:
ABO blood groups are determined by the presence of three alleles - A, B and O, on the chromosome 9. These alleles code for the presence or absence of two specific antigens (A and B) on the surface of red blood cells.
- Co-dominance: When two different alleles are present, both of them express their phenotype equally without any dominance or recessive effect. In ABO blood group, both A and B alleles are co-dominant, which means that if an individual has both A and B alleles, then both antigens will be expressed on the surface of red blood cells.
- Recessive: In genetics, a trait or allele is said to be recessive when it is masked by the presence of a dominant allele. The O allele is recessive to both A and B alleles, and it does not express any antigen on the surface of red blood cells.
Therefore, the correct answer is option C - three alleles, of which two are co-dominant and the third is recessive. This is because the A and B alleles are co-dominant, while the O allele is recessive.
Overall, the combination of these three alleles can result in four major blood types - A, B, AB, and O.
ABO blood groups are determined by the presence of three alleles - A, B and O, on the chromosome 9. These alleles code for the presence or absence of two specific antigens (A and B) on the surface of red blood cells.
- Co-dominance: When two different alleles are present, both of them express their phenotype equally without any dominance or recessive effect. In ABO blood group, both A and B alleles are co-dominant, which means that if an individual has both A and B alleles, then both antigens will be expressed on the surface of red blood cells.
- Recessive: In genetics, a trait or allele is said to be recessive when it is masked by the presence of a dominant allele. The O allele is recessive to both A and B alleles, and it does not express any antigen on the surface of red blood cells.
Therefore, the correct answer is option C - three alleles, of which two are co-dominant and the third is recessive. This is because the A and B alleles are co-dominant, while the O allele is recessive.
Overall, the combination of these three alleles can result in four major blood types - A, B, AB, and O.
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With respect to the ABO group, there are four major blood types becaus...
Three allele A B ND O in which A nd B codominant nd O is recessive eg_ AB blood group present but in AO blood only A shows dominant chatcter
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With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer?.
With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With respect to the ABO group, there are four major blood types because this blood group is determined by [1998]a)three alleles, all of which are recessiveb)three alleles, of which, two are recessive and the third is dominantc)three alleles, of which two are codominant and the third is recessived)three alleles , all of which are codominantCorrect answer is option 'C'. Can you explain this answer?.
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