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Tongue rolling was thought to be an example of a human trait controlled by a single gene, but we now know that identical twins, who share 100% of their DNA sequences, will only share the tongue-rolling trait 70% of the time. This indicates that tongue rolling may also be controlled by the environment. True False

Sagot :

Answer:False probably

Explanation:

as no sign of environment controlling tongue rolling.
Tongue rolling is often saw in every 7/10 people.