Groundwater seepage does not account for natural river flows during the dry

true or false?

GPCR binding assay is a cell-free method which theoretically suit for any GPCR screening without involving downstream signaling from the receptor. This type of assay can also obtain agonists and antagonists in one experiment.

https://www.creative-biogene.com/Services/Drug-Discovery-Services/GPCR-Screening-Profiling-with-Binding-Assays.html

Explanation:

they may bind directly to special “promoter” regions of dna, which lie upstream of the coding region in a gene, or directly to the rna polymerase molecule.

i'd say that the moon rock is about 2.2 billion years old.