Nitrifying bacteria such as Nitrosomonas and Nitrosospira are soil and aquatic bacteria of considerable ecological significance. They oxidize ammonia to nitrite. They are called as

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#Question id: 9284

#Section 2: General Biology

Following are some facts regarding spatial separation of PSI and PSII. Which one would be INCORRECT?

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#Question id: 1899

#Section 2: General Biology

Which of the following statements is NOT TRUE? Rejection of a second (set) skin graft from the same allogeneic donor:

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#Question id: 10147

#Section 2: General Biology

Which of the following enzymes is regulated by supramolecular assembly ?

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#Question id: 3733

#Section 3: Genetics, Cellular and Molecular Biology

The sequence of genes and proteins used in the initiation and termination of DNA replication is

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#Question id: 14742

#Section 5: Bioprocess Engineering and Process Biotechnology

Gel chromatography is used for hormone separation. A pilot-plant scale gel chromatography column packed with sephacryl resin is used to separate two hormones, A and B. The column is 5 cm in diameter and 30 cm in height: V, = 1.9x 10-⁴m³, Wr = 3x10^-3m³ /kg dry sephacryl, ps =1.25 x 10³ kg/m³ . The partition coefficients are k_pA =0.38 and k_pB= 0.15. If the eluting flow rate is 0.7 I/h, what is the retention time for each hormone?