When I started my bibles were paper Pub 17 and Pub 334

I suggest you bookmark them and start to do research there for almost any tax question you have with them, rather than waiting for some random person to post an answer here. 

Or just use Google Search "Can i claim my married daughter as a dependent?"

The answer is maybe depending on details. Like George said you need to do some research. your question is tax 101, and you should be taking some CE.

And then there are always the instructions to Form 1040.  Hint:  Start on Page 17.