Problemas
3. A man with type B blood (genotype BB) is married to a woman with type O blood. What proportion of their children will have: Show the Punnett A blood? __ B blood? __ blood __ AB blood __
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Berta
maestro · Tutor durante 5 años
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(251 Votos)
Respuesta
A blood? 0%B blood? 100%AB blood? 0%
Explicación
## Step 1The problem involves understanding the inheritance of blood types in humans. The blood type is determined by the alleles a person inherits from their parents. The alleles for blood type are A, B, and O. The A and B alleles are co-dominant, meaning that if a person has both an A and a B allele, they will have AB blood. The O allele is recessive, meaning that a person will only have O blood if they inherit two O alleles.## Step 2In this case, the man has type B blood with a genotype of BB, and the woman has type O blood with a genotype of OO. This means that the man can only pass on a B allele, while the woman can only pass on an O allele.## Step 3When we create a Punnett square to visualize the possible combinations of alleles in their children, we see that all possible combinations involve a B allele from the father and an O allele from the mother. This means that all children will have type B blood.