BIOLOGY

JAMB 2009 - Question 43

Biology 2009 JAMB Past Questions - Question 43: A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue (tt). What is the probability of each of their children being a tongue roller?

Choose the most appropriate option for the gap .
A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue (tt). What is the probability of each of their children being a tongue roller?
A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue (tt). What is the probability of each of their children being a tongue roller?
A:
B:
C:
D:
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Correct Answer

C

Explanation

Result: 2 tongue roller phenotypically. 2 non tongue rollersProbability = No of expected outcome No. of possible outcome2/4 X 100/1 % = 50%