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Q 7. Escherichia coli should have which of the following colony characteristics,

ID: 280249 • Letter: Q

Question

Q 7. Escherichia coli should have which of the following colony characteristics, respectively, on mannitol salt, MacConkey, and glucose fermentation tubes?

no growth, reddish-pink colonies, and yellow with a bubble in the Durham Tube

colonies with a yellow halo, reddish-pink colonies, and metallic green colonies

no growth, pink colonies, and purple colonies

no growth, reddish-pink colonies, and metallic green colonies

There should be 1 answer. Thank you for your help!

no growth, reddish-pink colonies, and yellow with a bubble in the Durham Tube

colonies with a yellow halo, reddish-pink colonies, and metallic green colonies

no growth, pink colonies, and purple colonies

no growth, reddish-pink colonies, and metallic green colonies

There should be 1 answer. Thank you for your help!

Explanation / Answer

Option a is correct because it doesn't grow on mannitol salt and gives yellow colour on glucose fermentation tubes.