According to the punnet square, if you combine a parental homogeneous dominant trait and a heterogeneous trait. 1 out of the 4 boxes will be homogeneously recessive.
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Answer:
Since there are fewer individuals there is less genetic variation meaning that one disease/disaster and wipe out the whole population
Explanation:
The control group is the group that you compare as the original to see changes and differences ex. the control group receives nothing while the other group has a power up. basically the group with "power ups" performs better than the control group so you can tell the difference.
25% will be expected to have the TTYy combination.
Hope this helps!