Question

In cryema test -------- utilizes
congo red dye very slowly and
form white circular and raised
colonies.
SSS
CA
Seces
S.
SESSES
ES
GES
Answer
A Azotobacter
B. Cyanobacteria
c. Bacteria
D. Rhizobium​

Answer 1

Answer:

D. Rhizobium is the answer

Explanation:

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Answer 2

Cryema test

Explanation:

• The cryema test is usually used for the identification of Rhizobium colonies.
• During this test, the congored dye is mixed with a specific medium to form cryema medium that is used to grow bacterial colonies (Rhizobium).
• When we observe the colonies obtained, we notice that the white circular and raised (convexly elevated) with regular margin colonies are present on the Petri plates.
• The observed colonies show all characteristics similar to Rhizobium, thus we infer that the cryema test is used to identify Rhizobium colonies.
• Therefore the correct answer is the option C.