Aresearcher studying a line of cancer cells notices that cellular content of rhobtb3 and cyclin e1 increase and decrease through the cell cycle. he hypothesizes that rhobtb3 signaling regulates the production of cyclin e1 and the entry of the cell into mitosis. based on the data below, explain why his results do not support this hypothesis. identify what conclusions are supported by this data. suppose that the researcher can engineer a cell line in which rhobtb3 expression can be induced by the addition of a drug. design an experiment using this cell line to test whether rhobtb3 regulates the production of cyclin e1. describe what results he can expect if his hypothesis is correct.

Urea, co(nh2)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics and as a fertilizer. what is the maximum mass of urea that can be manufactured from the co2 produced by combustion of 1.00 x 104 grams of co2?

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean