DNA/RNA; Why are you drawn to the area(s) of study you indicated?

Please be brutal. I also need help cutting it down to 300 characters. Thank you so much(:

During my internship at USC's Stem Cell Core, I was exposed to protein biosynthesis and various interactions between different DNA/RNA molecules. It was maddening yet compelling about how many biomolecular factors contributed to regulating pluripotency. The comprehension of pluripotency was a wanton enigma waiting to be unraveled. As I leave for college, I have no intention of discontinuing my quest to solve this puzzle. 361 characters

"It was maddening yet compelling about how many biomolecular factors contributed to regulating pluripotency. "
Change to:
"The amount of biomolecular factors that regulated pluripotency was maddening, yet fascinating. "

"The comprehension of pluripotency was a wanton enigma waiting to be unraveled. "
Change to:
"The secrets of pluripotency are a puzzle waiting to be solved. "
You can use some other word instead of "secrets" or another analogy instead of "a puzzle waiting to be solved" if you want.

Also, replace "discontinuing" with "ending".