The most popularly known blood grouping is the $ABO$ grouping. It is named $ABO$ and not $ABC$, because $“O”$ in it refers to having

  • [AIPMT 2009]
  • A

    overdominance of this type on the genes for $A$ and $B$ types

  • B

    one antibody only -­ either anti -­ $A$ or anti ­- $ B$ on the $RBCs$

  • C

    no antigens $A$ and $B$ on $RBCs$

  • D

    other antigens besides $A$ and $B$ on $RBCs.$

Similar Questions

If one parent belongs to $‘A'$ blood group and the other to $‘O'$ blood group, their children possibly represent

Mother and father both have blood group $‘A’$. They have two children one with blood group $‘O’$ and second one with blood group $‘A’$. They have

  • [AIIMS 2009]

In heterozygous condition, the individual expression of both the alleles in the phenotype is exemplified by

The genotypes of a husband and wife are $I^AI^B$ and $I^Ai$. Among the blood types of their children, how many different genotypes and phenotypes are possible?

  • [NEET 2017]

$ABO$ blood grouping is controlled by gene I which has three alleles and show co­dominance. There are six genotypes. How many phenotypes in all are possible?

  • [AIPMT 2010]