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My Father's Blood group
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<blockquote data-quote="phoenix" data-source="post: 888907" data-attributes="member: 12578"><p>Your Father could be A or AB not O .Have a look at this calculator . I don't think the one you used is working properly. <a href="http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/btcalca_popup.html" target="_blank">http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/btcalca_popup.html</a></p><p>You inherit one set of chromosomes from your mother and one from your father. So you have two sets.</p><p></p><p>The ABO blood group system is determined by a gene on chromosome 9.</p><p>Your DNA can code for A or B or O. We call these different versions different alleles.</p><p>As you get one chromosome 9 from earch parent you could receive</p><p>A+A,A+B,A+O,B+B or O+O</p><p>A sticks certain 'sugars' onto a blood cell ( really glycolipids but I'll call them sugars You may also hear the word antigens)</p><p>B sticks different sugars onto a blood cell</p><p>O doesn't stick any sugars on.</p><p>[ATTACH=full]13862[/ATTACH]</p><p>As your mother is B</p><p>She must have at least one B allele (ie version).</p><p>The other chromosome can't be A because that also sticks 'sugars' on and if it were A she would be AB</p><p>The second chromosome could be either another A or it could be an O .</p><p>BUT You are an A</p><p>Your mother <strong>must</strong> have given you an O (if she had given you her B then you would have been AB)</p><p>This means your mother must have had one chromosome with a B allele and one with an O allele</p><p></p><p><em>Your mother</em> :<em> <strong>BO </strong></em> <em>You<strong> AO</strong></em></p><p>Your A allele <strong>must</strong> have come from your father.</p><p>He could have A+A and given you his A (and would be blood group A)</p><p>He could have A+O and given you his A (and would be blood group A)</p><p>He could have A+B and again given you his A (and would be blood group AB)</p><p>And you can't tell which he is without testing.</p><p>[ATTACH=full]13861[/ATTACH]</p></blockquote><p></p>
[QUOTE="phoenix, post: 888907, member: 12578"] Your Father could be A or AB not O .Have a look at this calculator . I don't think the one you used is working properly. [URL]http://www.biology.arizona.edu/human_bio/problem_sets/blood_types/btcalca_popup.html[/URL] You inherit one set of chromosomes from your mother and one from your father. So you have two sets. The ABO blood group system is determined by a gene on chromosome 9. Your DNA can code for A or B or O. We call these different versions different alleles. As you get one chromosome 9 from earch parent you could receive A+A,A+B,A+O,B+B or O+O A sticks certain 'sugars' onto a blood cell ( really glycolipids but I'll call them sugars You may also hear the word antigens) B sticks different sugars onto a blood cell O doesn't stick any sugars on. [ATTACH=full]13862[/ATTACH] As your mother is B She must have at least one B allele (ie version). The other chromosome can't be A because that also sticks 'sugars' on and if it were A she would be AB The second chromosome could be either another A or it could be an O . BUT You are an A Your mother [B]must[/B] have given you an O (if she had given you her B then you would have been AB) This means your mother must have had one chromosome with a B allele and one with an O allele [I]Your mother[/I] :[I] [B]BO [/B][/I] [I]You[B] AO[/B][/I] Your A allele [B]must[/B] have come from your father. He could have A+A and given you his A (and would be blood group A) He could have A+O and given you his A (and would be blood group A) He could have A+B and again given you his A (and would be blood group AB) And you can't tell which he is without testing. [ATTACH=full]13861[/ATTACH] [/QUOTE]
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