A parental mystery: Mr. and Mrs. Smith have just arrived home with their new baby. As...

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Biology

A parental mystery: Mr. and Mrs. Smith have just arrived homewith their new baby. As soon as they walk in the door, they get acall from the hospital maternity ward. The nurse who discharged theSmiths is calling to say he is now worried that she sent the wrongbaby home with them. They return to the hospital for a battery ofblood tests to clear up the confusion. The results are found in thetable below:

Individual

ABO Blood Type

MN Blood Type
Hemoglobin Type
(Hâ€”normal; hâ€”mutant
hemoglobin, sickle cell)
Mr. Smith
Type A
Â Â Â Â Â Â Â Â Â Â Â MM
Â Â Â Â Â Â Â Â Â Â Â Hh
Mrs. Smith
Type B
Â Â Â Â Â Â Â Â Â Â Â MN
Â Â Â Â Â Â Â Â Â Â Â HH
Baby Emma
Type O
Â Â Â Â Â Â Â Â Â Â Â NN
Â Â Â Â Â Â Â Â Â Â Â Hh
Help them interpret the results of the blood test. Could babyEmma be their daughter? Why or why not?
Both the blood-type systems are examples of codominance, andsickle-cell anemia (hemoglobin type) is an example of an autosomalrecessive trait that also exhibits codominance. Help them interpretthe results of the blood test. Could baby Emma be their daughter?Why or why not?

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4.3 Ratings (555 Votes)

Ans Mr Smith Possible Genotypes ABO type IAIO IAIA Possible Genotypes MN type MM Hb type Hh Mrs Smith Possible Genotypes ABO type IBIO IBIB Possible Genotypes MN type MN Hb type HH Baby Emma Possible Genotypes ABO type IOIO Possible Genotypes MN type MM Hb type Hh Possibility based See Answer

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Individual	ABO Blood Type	MN Blood Type	Hemoglobin Type (Hâ€”normal; hâ€”mutant hemoglobin, sickle cell)
Mr. Smith	Type A	Â Â Â Â Â Â Â Â Â Â Â MM	Â Â Â Â Â Â Â Â Â Â Â Hh
Mrs. Smith	Type B	Â Â Â Â Â Â Â Â Â Â Â MN	Â Â Â Â Â Â Â Â Â Â Â HH
Baby Emma	Type O	Â Â Â Â Â Â Â Â Â Â Â NN	Â Â Â Â Â Â Â Â Â Â Â Hh