Question

mercy with blood group A and brian blood group B had three children .one child had blood group O ,one had blood group A and one had blood group B.EXPLAIN THE PATTERN OF INHERITANCE BY MEANS OF GENETIC DIAGRAM

Answer 1

Answer:

Explanation:

Blood grouping is determined by 3 alleles  ,   Ia, Ib and Io. out of these Ia and Ib are dominant on Io.   And Ia and Ib are codominant.

that means that

if a person has A blood group he could be either   Ia Ia    or    Ia Io.

if a person has B blood group he could be either   Ib Ib    or    Ib Io.

if a person has AB blood group he could be  Ia Ib    only.

if a person has O blood group he could be  Io Io    only.

this is the concept of blood grouping.

now in this question

mercy= A blood group =  Ia Ia    or    Ia Io

brian= B blood group= Ib Ib    or    Ib Io

child 1=  Io Io

child 2=  Ia Io or Ia Ia

child 3=  Ib Io or Ib Ib

child 1 has O blood group so his parents cannot be  Ia Ia   and   Ib Ib

(as child gets 1 allele from each parent)

so finally concluding the blood groups of family

mercy= A blood group = Ia Io

brian= B blood group= Ib Io

child 1= Io Io

child 2= Ia Io

child 3= Ib Io

HOPE YOU GOT IT.

please mark brainlyiest.

Answer 2

By the changing of the sugar levels in the blood group then the blood will inherited