In Matthew 22, Jesus blows up the Sadducees theology regarding the resurrection. In the passage a woman has had seven husbands, each of them die, and the question is asked whose wife will she be in heaven. (By the way, the main difference between the Sadducees and Pharisees was that the Sadducees did not believe in the resurrection of the dead.) They thought they had given Jesus a question that could not be answered.
What Jesus does next is not only answer the question, but gives a glimpse of "what" believers will be like in heaven. Crazy stuff.
Matt 22:30 "For in the resurrection they neither marry, nor are given in marriage, but are as angels in heaven." It seems clear that our gender will not matter in heaven as it does on earth. Now don't freak out on me yet.
Another passage that gives us a glimpse at the Kingdom of Heaven: Gal 3:28 "There can be neither Jew nor Greek, there can be neither bond nor free, there can be no male and female; for you all are one in Christ Jesus." This does not mean that we are all nebulous-asexuals, or some kind of hermaphrodites. What it does mean is that there will be no classification of people based on our worldly or natural understanding of such things.
One thing that we do see in scripture is that the family design still exists in heaven. God is our Father, Christ is our Elder-Brother, and we are as brothers and sisters. The will be positions,
Another type of questions I get a lot about heaven are things like will people know us or remember us, will we be conscience, have feelings, what about minds to think or reason, the ability to feel, and things to do besides sing songs for all eternity. I think I wait and answer those this Wednesday night at Destiny Church. You should join us in person or online at www.destinychurchlive.com. I'll give you a hint though, the answer is yes - and it's going to be better than anything you could have ever imagined in this life.