Which of the following would not potentially cause a...

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4/16/2018 Week 3 Pre-Lab Quiz Question 1 Correct 0.50 points out of 0.50 Started on Monday, 16 April 2018, 1:56 AM PDT State Finished Completed on Monday, 16 April 2018, 2:13 AM PDT Time taken 16 mins 42 secs Grade 4.50 out of 5.00 ( 90 %) Which of the following would not potentially cause a gram-positive cell to appear gram-negative after Gram staining? Select one: a. exposing the cells to ethanol for too long b. using safranin as a primary stain c. using older bacterial cultures d. counterstaining with crystal violet instead of safranin The correct answer is: counterstaining with crystal violet instead of safranin Your answer is correct.
1/3 Question Correct 0.50 points out of 0.50 3 Question Correct 4 0.50 points out of 0.50
Question Correct 0.50 points out of 0.50 If the total magnification of a microscope can be increased by simply adding more lenses, why are bright-field light microscopes not outfitted to magnify things greater than 1300X? Select one: 2

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