The two main classes of molecular switches include changes in phosphorylation state or changes in guanine nucleotide binding. In this regard, do you think that protein kinases and guanine nucleotide exchange factors (GEFs) always turn proteins on (activate) and protein phosphatases and GTPase activating proteins (GAPs) always turn them off?

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.

the answer is :