C. roseus cells immobilized in Ca-alginate beads of diameter 0.5 mm are used for production of indole alkaloids (IA) in a fluidized-bed bioreactor. The rate limiting nutrient is glucose and no intraparticle diffusion limitations exist. Use the following data: Flow rate of the feed: Q = 1 l/h, Glucose in the feed: So = 30 g/l, Plant Cell Concentration: X = 6 g/l reac. The rate constant for IA formation: k = 5 d-1 (g/l)-1 Ks = 0.4 g/l, Column diameter: Do = 0.15 m. Growth is negligible and Monod kinetics is valid. For 95% glucose conversion determine required hydraulic residence time.

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#Question id: 2958

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following structures is not a feature of the mitotic chromosome?

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#Question id: 2961

#Section 3: Genetics, Cellular and Molecular Biology

What is the best evidence that anaphase chromosomes are not pulled to the poles like fish on a line?

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#Question id: 2963

#Section 3: Genetics, Cellular and Molecular Biology

Eukaryotic chromosomes are composed of which of the following macromolecules?

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#Question id: 2967

#Section 3: Genetics, Cellular and Molecular Biology

G1 is associated with which of the following cellular events?

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#Question id: 2968

#Section 3: Genetics, Cellular and Molecular Biology

What is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle?

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#Question id: 2976

#Section 3: Genetics, Cellular and Molecular Biology

Match the following Regulators with its functions.

Column I	Column II
A.  Wee1 kinase	i. Degradation of phosphorylated Sic1 or p27KIP1
B. Cdc25A phosphatase	ii. Induces degradation of B-type cyclins
C. APC/CCdc20	iii. Activates vertebrate S phase CDKs
D. SCF	iv. Inhibits CDKs

Which of the following is correct?