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Professor: If both parents have type O blood then their children can only have type O blood. ████ ██ █ ███████ ████
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16.
The student has most likely ██████████████ ███ █████████████ ██████ ██ █████ ████
a
only people with ████ █ █████ ███ ████ ████████ ████ ████ █ █████
b
people with type █ █████ ██████ ████ ████████ ████ ████ █ █████
c
people with type █ █████ ██████████ ████ ████████ ████ ████ █ █████
d
what is true ██ ███ █████ ██ ███ ██████ ████ ████ ██ ████ ██ ███ ████████ ██ ████ ██████
e
if both parents ████ ████ █ ██████ ████ █████ █████ ████ ████ ████ █ █████