What blood type(s) can a child born to a mother with B- blood type and a...

What blood type(s) can a child born to a mother with B- blood type and a father with A+ blood type have? Explain your answer fully.

Be sure to focus on the concepts of dominant and recessive alleles, multiple alleles, and codominance in your explanation.

Are there any special concerns this mother should consider? Explain.

Can blood type be used to determine paternity? Why or why not?

How do you think O can be the most common blood type when type O is recessive?

Although the human population as a whole share the same 29 known blood systems, not all ethnic groups have the same ratios of blood types in their populations. Discuss this fact from an evolutionary perspective.

references please and thank you

Solutions

Expert Solution

*Child can have the blood group of any of 4 types- A+/B+/AB+/O+ ( +/- genotype always produce Rh+ genotype only)
*Because when mother is having Rh negative (Rh-) ,her blood type will be incompatible for her baby's blood type.She may produce harmful antibodies in her body.During her first trimister she should recieve RhIG injection which will stop production of antobodies which are armful to fetus.
*Child will have 2 genes ,one will get from mother and another from father.
*Special concern to mother regarding the Rh negative aspect only,she must be given Rh IG injection to prevent production of harmful antibodies to fetus.
*Yes, blood type can be used for determining paternity as it consist of genes which will be transferd to child even.
*Because a deleterious recessive allele that is being selected against will actually persist longer in the population than a similar dominant allele..Because ,once the recessive allele is at low frequency most of the remaining copies are hidden in hetergenotype.

Nightingale answered 1 year ago

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