A researcher has identified two molecules involved in transcription and translation, shown here. Select which investigation is most appropriate to identify the roles of these molecules in transcription?

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

20 the compound al(nh3)2 has atoms of nitrogen.

Which measure of an earthquake depends on how close you are to the focus?