Words similar to helper

Example sentences for: helper

How can you use “helper” in a sentence? Here are some example sentences to help you improve your vocabulary:

Trimethoprim (10 μg/ml) was added to counterselect the E. coli DH5α donor and helper strains.
Similar to CD8+ T cell responses, the magnitude of HIV-1-specific CD4+ T helper cell responses at the beginning of the first ( r = 0.05, p = 0.43) (Figure 3F), second ( r = 0.16, p = 0.54), or third ( r = 0.1, p = 0.55) treatment interruption was not statistically predictive of the time the study participants were subsequently able to stay off therapy according to study criteria.
A mother's helper with a bag of tricks that promised new fun for the housebound, Dr. Benjamin Spock arrived on the postwar scene first.
Resulting plasmids were replicated in the helper phage-resistant host cell XLOLR with kanamycin selection.
Transfection of these cells with pAd-Lox-human TGF-β1 was performed by the calcium phosphate precipitation method with 3 μg pAd-Lox-human TGF-β1 construct digested with Sfi I and 3 μg ψ5 helper virus DNA.