Answer:
50% tongue and 50% no tongue.
Explanation:
Upper case T is dominant over lower case t recessive, so we can see that there are two Tt and two tt.
you have to make the Table like this.
T t
t Tt tt
t Tt tt
Final answer 50% tongue and 50% no tongue.
The mistake is fixed.
X is mathematically an unknown.
Complex biochemicals found in diverse species probably did not evolve independently which is how they indicate common industry