HomeFAQsThe control reaction is not resulting in any colonies. Why?
FAQ: The control reaction is not resulting in any colonies. Why?
Our testing indicates that the choice of competent cells is critical. We recommend the use of high-efficiency chemically-competent cells such as NEB 5-alpha Competent E. coli (High Efficiency) (NEB #C2987).
You have been idle for more than 20 minutes, for your security you have been logged out. Please sign back in to continue your session.
Your profile has been mapped to an Institution, please sign back for your profile updates to be completed.
Sign in to your NEB account
To save your cart and view previous orders, sign in to your NEB account. Adding products to your cart without being signed in will result in a loss of your cart when you do sign in or leave the site.