Welcome to our group.
hectik, its unlikely you will be able to tell the sex of that plant yet, which is just fine, it will give you some time to do some reading. It won't show sex until it is only getting about 12 hours of light.
Projump. you are right to be concerned about the humidity level in a basement grow. You will need a hygrometer so you know if its high. They have combination thermometer/hygrometers that even keep track of maximum and minimum temps for a 24 hour period, around $25.00. Hit us back in your journal if its a problem, we will try and help.
weedyoo, welcome. Yes, Medical Marijuana gives many people better pain relief. Sorry you have a problem, we will give you all the help we can.
Goofy9er420, I think Projump answered your question, of course what you will get is the same type of quality as the bag was. A lot of us, myself included started with bag seeds to practice with and then ordered some 'good seeds'.
Again Welcome. VV