Answer and explanation:
If no bands were visible on the gel for some samples I'd interpret this result as in a very possible pippeting error that did not allow the sample to load correctly. Pippeting error can be caused by many factors, for example, if our chosen pipet is broken or dirty this can cause amount of liquid reduction after the transfer process.
True: living in urban environments can influence an individual's behavior.
Answer: Un sistema de partidos es un concepto de la ciencia política comparada relativo al sistema de gobierno de los partidos políticos en un país democrático.
Explanation: ahi tienes spanky
