Question

Lab 4-2 Blood Agar (BA) 1. What chemical or property makes the media selective? How is it selective? 2. What chemical or property makes the media differential? How is it differential? (Note color changes to the media, for example, MSA is pink at the start and can turn yellow) 3. Does the media select for or against Gram-positive and Gram-negative bacteria? (Remember that "selecting for" means it promotes the growth of" and "selecting against" means it suppresses the growth.) Lab 4-3 Mannitol Salt Agar (MSA) 1. What chemical or property makes the media selective? How is it selective? 2. What chemical or property makes the media differential? How is it differential? (Note color changes to the media, for example, MSA is pink at the start and can turn yellow) 3. Does the media select for or against Gram-positive and Gram-negative bacteria? (Remember that "selecting for" means it promotes the growth of" and "selecting against" means it suppresses the growth.)

          Lab 4-2 Blood Agar (BA)
1. What chemical or property makes the media selective? How is it selective?
2. What chemical or property makes the media differential? How is it differential? (Note color changes to the media, for example, MSA is pink at the start and can turn yellow)
3. Does the media select for or against Gram-positive and Gram-negative bacteria? (Remember that "selecting for" means it promotes the growth of" and "selecting against" means it suppresses the growth.)

Lab 4-3 Mannitol Salt Agar (MSA)
1. What chemical or property makes the media selective? How is it selective?
2. What chemical or property makes the media differential? How is it differential? (Note color changes to the media, for example, MSA is pink at the start and can turn yellow)
3. Does the media select for or against Gram-positive and Gram-negative bacteria? (Remember that "selecting for" means it promotes the growth of" and "selecting against" means it suppresses the growth.)

Added by Abigail W.

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