[dalore]

The Queen (or let's say monarchy) is a check on parliamentary powers. They are like the USA president. It's not better or worse, it's just a different way of keeping powers in check. She has the power to dissolve the government and not pass those laws but the people would be up in arms. But if the politicians get locked she/they can fix it. Very rarely happens but it does (see Australia in the 1970s). The commonwealth countries are similar but instead of the Queen they have a governor general which is her representative.

If she went and dissolved parliament now, during the Brexit negotiations everyone would rightly say she is interfering with democratic process.