What is used to help the primary stain penetrate the cell in both the acid-fast stain and endospore stain?

A) Alcohol
B) Heat
C) Water


A) Alcohol

Biology & Microbiology

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Hfr cells are bacterial cells that ____

a. perform meiosis b. have the F factor integrated into their chromosome c. maintain the F factor in a plasmid d. have a low frequency of recombination e. have received DNA from a bacteriophage

Biology & Microbiology

The large number of alveoli in lungs improve gas exchange by _____.  

A.  increasing the concentration difference B.  changing the diffusion constant C.  decreasing the distance for diffusion D.  increasing the surface area for diffusion

Biology & Microbiology

Describe how quantitative traits can be explained in Mendelian terms

What will be an ideal response?

Biology & Microbiology

The virulence factor in Vibrio parahaemolyticus is the thermostable hemolysin (Kanagawa hemolysin).

a. true b. false

Biology & Microbiology