During the inventory of bacterial genes present in the Sargasso Sea, a deep isolated area in the middle of the Atlantic Ocean, a research team concluded that at least 1,800 bacterial species were present. Based on what you might predict about the habitat structure of such an area, what kind of bacterial diversity would you expect to see in tropical coral reef waters?

#Question id: 14278

#SCPH05 I Biotechnology

Stirrer has a power number (Np) 10. If the stirrer speed (N) is 1s^-1, its diameter D=1m and the density of the medium is 1000 kg/m^3, the ungassed power input (P) in watts is 

#Question id: 10788

#I Life Science/ Life Sciences Group – I-V

Phenyl ammonia lyase (PAL) involved in biosynthesis of phenolic compound in plants. Following are some statements regarding the action of PAL;

a) PAL catalyze conversion of phenyl alanine to p-coumaric acid

b) PAL catalyzes the conversion of phenyl alanine into trans-Cinnamic acid by elimination of an ammonia molecule

c) The activity of PAL is increased by environmental factors, such as low nutrient levels, light, and fungal infection

d) PAL is situated at a branch point between primary and secondary metabolism, so the reaction that it catalyzes is an important regulatory step in the formation of many phenolic compounds

Which of the following combinations of above statement is true?

#Question id: 6955

#SCPH06 I Botany

In frogs, maternally packaged Xwnt-11 leads to nuclear localization of _____ in the _____, which in response signals to adjacent cells to become the _____.

#Question id: 1389

#SCPH06 I Botany

 Why has C. elegans proven to be a useful model for understanding apoptosis?

#Question id: 4931

#SCPH06 I Botany

During course of evolution first prototroph was anoxygenic?