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Evolution/heridity and evolution

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Question
adi
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In 1 family,each of the 4 children has a different blood group.their mother is group A and the father is group is group B.Explain this pattern of inheritance with th help of a cross along with the genotypes
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         a
BLOOD GROUP A - I i
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         b
BLOOD GROUP B -I i
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         a b
BLOOD GROUP AB -I I (co -dominance)
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BLOOD GROUP O -ii

Answer
My specialty is evolution... that is how physical traits are inherited, and changed over time.  This strictly isn't a question on evolution, but rather a medical question.

In brief, there are four blood groups... a, b, ab, o.

O is the most common, (ab the least common)...and  o can donate to the other three.

However just because one parent is a, and the other b, does not mean that there will be only a, b and ab children any more than just because two parents have brown eyes, that all their children will be brown eyed.

Apart from this, you might find this question better answered by a research physician doing work with blood, not from someone trained in evolutionary science.

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Elisabeth DeWald

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I've been a public school teacher for 26 years. My major was history, but along the way, picked up minors in math, biology, zoology, and other life sciences. My whole life has been on one side of the desk or the other. Husband and Dad were both MDs so science and medicine was a natural for me. My dad once told me that I knew more medicine than most doctors. I can easily answer almost any life science question, most history questions, and lots of medical questions.

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Taught math,history, science, geology, chemistry, biology in a public school setting

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None at the present time

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none

Education/Credentials
Majored in history in college, minored in all those subject mentioned. Masters degree in education. Grad courses, but no degree in religious studies, U of Chicago, Divinity School.

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Award at my one of my colleges of Best Student, in History as a year end award.

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I tutored for two years in math. Math however, if not used daily fades. My area of competency is in honors first year algebra, at this point.

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