Production of recombinant protein by a geneticallyengineered strain of Escherichia coli is proportional to cell growth. Ammonia is used as nitrogen source for aerobic respiration of glucose. The recombinant protein has an overall formula CHI.5500.31N0.25. The yield ofbiomass from glucose is measured at 0.48 g g-1; the yield of recombinant protein from glucose is about 20% that for cells. If the biomass yield remains at 0.48 g g- l, how much change in ammonia requirement for wild-type E. coliunable to synthesise recombinant protein?

TLS Online TPP Program

#Question id: 8913

#Section 6: Plant, Animal and Microbial Biotechnology

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

TLS Online TPP Program

#Question id: 8914

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following is (are) unique to animals?

TLS Online TPP Program

#Question id: 8915

#Section 6: Plant, Animal and Microbial Biotechnology

The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by

TLS Online TPP Program

#Question id: 8916

#Section 6: Plant, Animal and Microbial Biotechnology

What do animals as diverse as corals and monkeys have in common?

TLS Online TPP Program

#Question id: 8917

#Section 6: Plant, Animal and Microbial Biotechnology

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

TLS Online TPP Program

#Question id: 8918

#Section 6: Plant, Animal and Microbial Biotechnology

In individual insects of some species, whole chromosomes that carry larval genes are eliminated from the genomes of somatic cells at the time of metamorphosis. A consequence of this occurrence is that