Multiple Choice Quiz – Genetic Pedigrees – 5 – ABO and Rh blood group

Punnett square for person #2. Yellow genotypes would result in A- blood type i.e. same as her brother

Final Q…

Picture of a family tree showing ABO blood group types
And finally, what is the probability that female #4 (blue circle) is the AB- blood type? Clue, it isn’t as easy as it first looks!
37.5 % (3/8)
75% (3/4)
50% (1/2)
100%
25% (1/4)
66.67% (2/3)

Answer explanation on the next page

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