To answer, you must first make a distinction about "jurors". The type of thing you are speaking of is often allowed in grand jury proceedings. But those are a different animal altogether. Those are just the prosecutors presenting information to a jury without a judge, any representative for or the defendant themselves. There are no real rules of evidence other than witnesses being under oath, but things like hearsay are allowed and so on. Grand jury members are sometimes allowed to ask direct questions of witnesses. These only serve the purpose of the prosecution getting indictments against a target defendant. Because it's so imbalanced and favors the prosecution's presentation, it has been associated with sayings like being able to get an indictment against a ham sandwich.
In Trump's case, the jurors are part of what is known as a petit jury. In those trials, the system is supposed to be fair and balanced to both sides with the judge only calling balls and strikes. Rules are in place to ensure this neutrality and our system is designed to default to the defendant. The State has the burden. If they don't meet it, the guy walks. It's historical in nature and it's part of what has made us the envy of the world, but from a policy perspective, we'd rather that 10 guilty guys go free than put 1 innocent guy in jail. I would have to research it to know the actual answer, but my guess is that would be very rare for jurors to be allowed to ask questions in a regular trial. It would upset the balance of the system.
But, this gets back to the point that's been harped on in this particular trial regarding the rulings and behavior of this particular judge. He's not just calling balls and strikes. From what I read last evening, some of his jury instructions alone are likely to be a basis for overturning a guilty finding. However, politically, the end result will not matter as it will be after the election.