Q. 65.0( 3 Votes )
Person having genotype IA IB would show the blood group as AB. This is because of:
A. Pleiotropy
B. Co-dominance
C. Segregation
D. Incomplete dominance
Answer :
ABO blood grouping in humans is controlled by the gene I. The gene (I) has three alleles IA,IB and i. Each person posses any two of the three I gene alleles. IA and IB are completely dominant over i. Which means when IA and i are present, IA expresses (because i do not produce any sugar) and when IB and i are present, IB expresses but when IA and IB are present, together they both will express their own type of sugars: this is because of Co-dominance.
Rate this question :
How to solve applied questions based on Mendel's law of inheritance46 mins
Everything About Genetic Disorders55 mins
Basic Quiz - Principles of Inheritance & Variation53 mins
Advanced Quiz - Principles of Inheritance & Variation46 mins
Interactive Quiz on Principles of Inheritance and Variation33 mins
Pedigree chart58 mins
Medelian disorder series: Thalassemia, Sickle cell anaemia & Phenylketonuria60 mins
How to solve questions of pedigree chart49 mins
Meselson and Stahl experiment49 mins
Interactive Quiz on Molecular basis of Inheritance-0234 mins
It is said that Mendel proposed that the factor controlling any character is discrete and independent. His proposition was based on the
Biology - ExemplarMother and father of a person with ‘O’ blood group have ‘A’ and ‘B’ blood group, respectively. What would be the genotype of both mother and father?
Biology - ExemplarHow are alleles of particular gene differ from each other? Explain its significance.
Biology - ExemplarPerson having genotype IA IB would show the blood group as AB. This is because of:
Biology - ExemplarWhat is the cross between the progeny of F1 and the homozygous recessive parent called? How is it useful?
Biology - ExemplarA plant with red flowers was crossed with another plant with yellow flowers. If F1 showed all flowers orange in colour, explain the inheritance.
Biology - ExemplarDiscuss the genetic basis of wrinkled phenotype of pea seed.
Biology - Exemplar