If the cube does not fit too small , gently remove it and widen or deepen the cut. The seedling tissues were used for DNA extraction as described below. Roots always try to grow down, so put the seed inside a folded damp paper towel, but ensure only one layer is below the seed and the other damp layers are on top.  Source: [url=https://apkzilla.info/seeds-of-serenity-a-cannabis-cultivation-adventure_549721.html]https://apkzilla.info/seeds-of-serenity-a-cannabis-cultivation-adventure_549721.html[/url]