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omeli [17]
3 years ago
10

How do pedigrees help us understand how traits are passed down?

Biology
1 answer:
netineya [11]3 years ago
4 0
They give us a point of view on how genes or traits are passed down from our ancestors to our grandparents, to our parents, then to us. Pedigrees can show also how genes make us who we are and which side of the family those genes come from
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The inheritance of ABO blood groups corresponds to an autosomal codominant pattern.

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The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

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The presence of an antigen A or B, suppresses the expression of blood type O, recessive, which will be possible only in its homozygous form.

Learn more:

Factors responsible for ABO blood type brainly.com/question/2645377

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3 years ago
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hope it helps

Thank you

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Explanation:

mail me via at 16jacktwinwritters at g mail and i will help you out on the question

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