Biotechnology vocabulary?

Its a crossword puzzle.

Hhs ib bio is all likely to work together, right? So ill give numbers too for us. :)

10 acr. Radioactively tagged rna strand used in recombinant dna to recognize clones? (5 letters, last one e)

1 down: manipulating genes for practical purposes like crop development. 13 letters, 11th one is o.

2down. Resulting pattern of bands made during gel electrophoresis. 14 letters, 11th one is r.

19down. What must be done repeatedly in pcr to make more dna. 8 letters, 2nd one is e.

23down. Introns that dont code for proteins. 9 letters, 1st one is n.

If you could answer any of all of these that wouod ne great.

Hhs bio, email me if you need any of the others. Or if you have one of these. Simplistic_wonders@yahoo.com

We're all provably gonna do some working together on this at some ooint anyways...