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Two new born babies were accidentally mixed up in the hospital, and there was a...

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islnds | Valedictorian

Posted April 16, 2013 at 8:35 AM via web

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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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jerichorayel | College Teacher | (Level 1) Senior Educator

Posted April 16, 2013 at 3:53 PM (Answer #1)

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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.

---------------------------------------------------------------------

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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