No.
Airplane Flying Handbook, issued by FAA, states - 'it is â—¦recommendedâ—¦ (so, not an obligation, although FAA's "recommendations" often mean something you should definitely do in practice. Funny things I hear.) that the student pilot form the habit of keeping one hand on the throttle throughout the approach and landing, should a sudden and unexpected hazardous situation (excessive rate of sink or a stall) require an immediate application of power.'
First few lessons I've had with an instructor were exactly that, forming a habit. He had no issues pulling my hand and placing it on the throttle no matter how many times. Your instructor should be doing the same thing.
Do not think "oh well nothing is going to happen to me". WRONG. Expect everything that can go wrong to go wrong (and the Murphy's law tells us you will be soloing when bad things happen), and when it does go wrong, you don't need seconds, you need an instantaneous reaction. Preparation and awareness at all times, expect the unexpected. No matter if student or ATP.
If controlling the airplane with one hand is an issue for you, find some techniques that could help you. Configure your airplane properly. Heck ask your instructor, you're paying him big bucks. Remember, no one can force you to go solo. Nor you should compete with national average. Take your time, be comfortable.
I might seem harsh a little bit but I want you to learn it the proper way, right at the beginning. Speaking of learning, I recommend you some reading of FAA issued handbooks - can be found on their website, downloadable for free.