You are studying the expression of the gene that appears to be under the control of three different transcription-control regions during mouse embryonic development. which one of the following is the best method to use to determine when each of these regions are active in the developing mouse embryo?
a - dna affinity chromatography
b - polymerase chain reaction
c - dnase i footprinting
d - reporter gene assay

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u. s. and mexico. the st. lawrence seaway provides an important trading route for the u. s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?