Answer: inhibition
Explanation:
What does inhibition mean?
Inhibition means you are held back to do something by the fear of someone in your presence or fear of something in your presence.
In this case above Peter can't be himself in the presence of his father due to his father's mood swings.
This is affecting how Peter can freely be himself or do things that he would normal do as he is constant unrelaxed in the presence his father and he can only return to his normal self if his father has settled down emotionally .
The correct answer in the blank is polygenic inheritance. It describes the statement above for the polygenic substance enables to control a characteristic with the use of the genes that it comes from. These is the reason why personality characteristic is being identified or known and its the reason of the polygenic inheritance.
