A two-stage chemostat system is used for production of secondary metabolite. The volume of each reactor is 0.5 m³; the flow rate of feed is 50 l h^{- 1}. Mycelial growth occurs in the first reactor; the second reactor is used for product synthesis. The concentration of substrate in the feed is 10 gl^-1. Kinetic and yield parameters for the organism are:

                                                            

Assume that product synthesis is negligible in the first reactor and growth is negligible in the second reactor. Determine cell concentrations entering the second reactor.

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#Question id: 3254

#Section 3: Genetics, Cellular and Molecular Biology

Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?

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#Question id: 625

#Section 2: General Biology

For enzymes in which the slowest (rate-limiting) step is the reaction Km becomes equivalent to:

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#Question id: 27337

#Section 3: Genetics, Cellular and Molecular Biology

The approximate number of nucleotides in tRNA molecule is ________?

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#Question id: 10795

#Section 6: Plant, Animal and Microbial Biotechnology

basic carbon skeleton of a flavonoid contains 15 carbons arranged in two aromatic rings connected by a three-carbon bridge. This structure results from two separate biosynthetic pathways:

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#Question id: 10265

#Section 3: Genetics, Cellular and Molecular Biology

The alternate form of a gene is