Which medium can be described as suppressing the growth of most gram-negative organisms while allowing gram-positive bacteria to grow?

a. Chocolate
b. CNA blood
c. BHI
d. Thioglycollate broth


B
CNA blood agar contains colistin and nalidixic acid, which inhibit most gram-negative organisms while allowing gram-positive bacteria to grow.

Biology & Microbiology

You might also like to view...

Cytoplasmic division in animal cells involves _____.

A. formation of a cell plate B. formation of a deepening cleavage furrow C. the division of sister chromatids D. the formation of evenly spread cytoskeletal elements under the entire plasma membrane E. the synthesis of new spindle fibers

Biology & Microbiology

What are the common characteristics of all eukaryotic cells?

A. nucleus, B. cell membrane, C. cytoplasm D. All of the above

Biology & Microbiology

In Table 12.1, which spore is in a sac and results from the fusion of two nuclei from different strains of the same fungi?

A) 1 B) 2 C) 4 D) 6 E) 8.

Biology & Microbiology

Plasmodium vivax causes a more serious form of malaria than does P. falciparum

Indicate whether the statement is true or false.

Biology & Microbiology