In humans,four phenotypes of blood groups are due to the presence of antigen-$A$ and antigen-$B$ on the $RBC$. The chromosome that carries the gene controlling these antigens is:

  • A
    $X$-chromosome
  • B
    $21^{\text{st}}$ chromosome
  • C
    $9^{\text{th}}$ chromosome
  • D
    $7^{\text{th}}$ chromosome

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Similar Questions

What are the possible blood groups of children born to parents with blood groups $A$ and $AB$?

Which of the following characteristics is true for the control of blood groups in humans?

If one parent has blood group $A$ and the other parent has blood group $B$,what blood groups can the offspring have?

When a gene exists in more than one form,the different forms are called

The genotypes of a husband and wife are $I^AI^B$ and $I^Ai$ respectively. How many different genotypes and phenotypes are possible among their children?

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