Two new born babies were accidentally mixed up in the hospital, and there was a question of which baby belonged to which parents. From the following blood type determine which baby belong to which...

Two new born babies were accidentally mixed up in the hospital, and there was a question of which baby belonged to which parents. From the following blood type determine which baby belong to which parents.

Baby-O:  Baby-A

Mrs Brown-B:  Mr Brown-AB

Mrs Smith-B:   Mr Smith-B

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To determine which baby belongs to which parents, we should use a punnett square. Since blood type B has two genotypes (which are BB and BO), there will be more than one punnett squares.

For Mr and Mrs Brown:

AB x BB

       A     B

B    AB   BB

B    AB   BB

 

AB x BO

       A     B

B    AB   BB

O    AO   BO

 

Results: blood type A (genotype AO) will show if Mrs Brown has a genotype of BO.

 

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For Mr and Mrs Smith

BB x BB

      B     B

B   BB   BB

B   BB   BB

 

BB x BO

      B     B  

B   BB   BB    

O   BO   BO

 

BO x BO

      B     O

B   BB    BO

O   BO    OO

The blood type O (genotype OO) is shown when Mr and Mrs Smith will have a genotype BO.

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Conclusion (answer):

Baby-A is the child of Mr and Mrs Brown

Baby-O is the child of Mr and Mrs Smith

Sources:

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