The Cas9 nuclease and requirements for RNA-guided genome-editing. Cas9 is the nuclease guided by the crRNA and tracrRNA (or trans-activating crRNA) to cleave specific DNA sequences (Deltcheva et al.2011). A guide RNA (gRNA) can be designed to include a hairpin that mimics the tracrRNA-crRNA complex (Jinek et al. 2012).he Cas9 nuclease and requirements for RNA-guided genome-editing. Cas9 is the nuclease guided by the crRNA and tracrRNA (or trans-activating crRNA) to cleave specific DNA sequences (Deltcheva et al. 2011).
Solid Surface Bathroom Countertops: These countertops are made from synthetic materials, so they are manufactured in many colors and styles. The pros of solid surface countertops include the choices, strength and a non-porous surface that cleans up quickly.
Countertop Materials in Home Counters. Choosing the right material for your bathroom or kitchen countertop is actually a very important decision.After all, the countertop material is going to be there for many years, and will have a profound effect on the value of your home going forward.In this section of the Countertop Guides website, we want to share the most popular countertop materials being installed in homes today.ountertop Materials in Home Counters. Choosing the right material for your bathroom or kitchen countertop is actually a very important decision.