Ryan Kramer is not a typical 20 year old. He graduated from high school at 14, has already earned a master's degree in engineering and will start working this fall at NASA as a rocket scientist.
But growing up with an incredible intellect wasn't the only thing that made him different from other kids.
"I was told I was donor-conceived at a very young age ... as I got older I became more curious about that half of my DNA," Kramer of Nederland, Colo., said.
With mom Wendy's approval, Kramer...Full Story