Read more Endless Fonts Tempera comes bundled with a huge array of great fonts, but it also supports Google fonts. Collect all liquid to the bottom of the tube by a quick spin if necessary. During thermocycling, the denaturation step should be kept to a minimum. The optimal temperature for Taq polymerase is about 75-80oC, but it is partially active even at typical annealing temperatures so primer extension begins during the annealing step. Click OK. The number of gaps for each hour.