Blood Types How many genotypes? Possible Genotypes A 1 or 2 (circle) B 1 or 2 (circle) AB 1 or 2 (circle) O 1 or 2 (circle)
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Blood types are determined by the presence or absence of antigens on the surface of red blood cells. The main blood group system is the ABO system, which includes four main blood types: A, B, AB, and O. Show more…
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The complete question is as follows. For practice, let's work with blood groups. Three alleles exist for human blood types. They were not numbered, but instead marked with the letters for A,B and O. The labelling convention is: IA, IB and Ii. IA and IB are codominant alleles, whereas Ii is the recessive type O. Humans are diploid; every individual carries only two alleles. 1.) List all possible blood group genotypes. 2.) How many kinds of homozygotes are there? 3.) How many kinds of heterozygotes are there? 4.) There are only 4 blood group phenotypes (A, B, AB and O). Based on the information given here , list the genotypes that produce each phenotype. a.) type A b.) type B c.) type AB d.) type O
Sri K.
Blood type is controlled by 3 alleles: A (IA), B (IB), O. (i). A and B are codominant, O is recessive. 1. a) What are the two genotypes possible for a person who has A blood? b) What genotype does a person with AB blood have? c) What genotype does a person with O blood have? d) What are the two genotypes possible for a person who has B blood? 2. A man with type AB blood is married to a woman also with type AB blood. What percentage of their children will have: A blood? _______ B blood? ______ O blood? _____ AB blood? ________ 3. A man with type B blood (genotype BB) is married to a woman with type O blood. What blood type will all their children have? What is the genotype of the children? 4. A woman with type A blood (genotype AO) is married to a type B person (genotype BO). What proportion of their children will have: A blood? _______ B blood? ______ O blood? _____ AB blood? ________ 5. A woman with type A blood is claiming that a man with type AB blood is the father of her child who is type B. Could this man be the father of the child? _______________ Show the possible crosses; remember that the woman can have AA or AO genotypes. Assuming that he is the father, what must the mother's genotype be? 6. A man with type AB blood is married to a woman with type O blood. They have two natural children and one adopted child. Jane has type A blood, Bobby has type B blood, and Grace has type O blood. (Show your work) Which child was adopted?
Sukhwinder N.
Blood Type Problems 1. List all the possible genotypes for each of the 4 blood types: Type O ____________ Type A ____________ Type B ____________ Type AB ____________ SHOW WORK! 2. A man with AB blood is married to a woman with AB blood. What blood types will their children be and in what proportion
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