Biology · BGCSE / Inheritance and genetics
StructuredPast exam questionForm 5 · BGCSE
A woman of blood group B and a man of blood group A have a biological child. The man and the woman are both heterozygous.
- aWith the aid of a genetic diagram, determine the percentage chance of their child being of blood group O. [8]
- bWith reference to blood group inheritance, describe co-dominance. [3]
You'll mark your own answer against the marking guide when you hand it in.
Source: BEC BGCSE Biology 2015, Paper 3, Question 7(a)
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