In <mobio.2.0013F637 at electriciti.com>, mobio at electriciti.com writes: >Does anyone have a protocol for making a 100 bp molecular weight marker? How >about a 1 kb molecular weight marker? Thanks in advance!! We digest the cloning vector pBR327 with Hinf I. The bands are about 150, 220, 300, 450, 500 and 1630 bp. Benjamin Braun