If A then the value of k for which A² = 8A + kl is .... 

#Question id: 3944

#Section 3: Genetics, Cellular and Molecular Biology

One way to tell if RNA polymerase II is in the process of transcribing an mRNA is to:

#Question id: 14401

#Section 5: Bioprocess Engineering and Process Biotechnology

Denitrifying bacteria are immobilised in gel beads and used in a stirred reactor for removal of nitrate from groundwater. At a nitrate concentration of 3 g m ^-3, the conversion rate is 0.011 g s-1 m-3 catalyst. The effective diffusivity of nitrate in the gel is 1.5 × 10 ^-9 m ² s^-1, the beads are 6 mm in diameter, and the liquid-solid mass-transfer coefficient is 10 ^-5 m s^-1. Km for the immobilised bacteria is approximately 25 g m ^-3. Calculate the observable Thiele modulus with CAs = 1.9 g m ^-3

#Question id: 14631

#Section 1: Engineering Mathematics

The series 

#Question id: 14326

#Section 5: Bioprocess Engineering and Process Biotechnology

The chemical reaction equation for conversion of ethanol (C₂H₆0) to acetic acid (C₂H₄0₂) is:

Acetic acid is produced from ethanol during growth of Acetobacter aceti, which has the composition CH_1.80_0.5N_0.2. Biomass yield from substrate is 0.14 g g^{- 1}; product yield from substrate is 0.92 g g^-1. Ammonia is used as nitrogen source. How much gmol of oxygen is demanded for acetic acid production?

#Question id: 4180

#Section 3: Genetics, Cellular and Molecular Biology

The anticodon of tRNAala can bind to three different codons for alanine (GCU, GCC and GCA) because