You treat MCF-7 cells for 24 hours with vehicle, estrogen and the newly developed selective estrogen receptor modulator (SERM), BRB99. Following treatment you carry out the MTT assay and measure the absorbance of each sample at 540nm.
The results are shown in the graph below, with absorbance expressed as % of control.

Based only on these results, which one of the following can you definitely conclude about BRB99?
This SERM:

Question

You treat MCF-7 cells for 24 hours with vehicle, estrogen and the newly developed selective estrogen receptor modulator (SERM), BRB99.  Following treatment you carry out the MTT assay and measure the absorbance of each sample at 540nm. 
 The results are shown in the graph below, with absorbance expressed as % of control. 
  
 Based only on these results, which one of the following can you  definitely  conclude about BRB99?   
 This SERM:

Accepted Answer

appears to reduce metabolic activity of this cancer cell line.

Answer

induces breast cancer cell apoptosis.

Answer

induces proliferative effects in this cancer cell line.

Answer

will behave similarly in other tissue types.

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You treat MCF-7 cells for 24 hours with vehicle, estrogen and the newly develope...

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