Choose the correct statement During abortive Transcription 

a. Abortive synthesis takes before escaping the promoter (-10 to +2), entering the elongation phase 

b. Abortive synthesis produces and releases short RNA transcripts of 10 nucleotides 

c. The major phenomenon which is responsible is Brownian ratchet 

d. Three general models were associated is “Scrunching”

#Question id: 663

#Unit 1. Molecules and their Interaction Relevant to Biology

________ is a technique used to analyze the macromolecular structure of proteins in solution.

#Question id: 4692

#Unit 3. Fundamental Processes

most common nucleoside modifications in eukaryotic rRNAs such as methylation, pseudouridine formation, and other modifications is carried by

#Question id: 5283

#Unit 8. Inheritance Biology

A generalized transducing phage is used to transduce an a- b- c- d- e- recipient strain of E. coli with an a+ b+c+d+ e+ donor. The recipient culture is plated on various media with the results shown in the table below What can you conclude about the linkage and order of the genes?

#Question id: 11065

#Unit 7. System Physiology – Animal

A liquid-ventilated lung compared to a gas-ventilated lung

#Question id: 10354

#Unit 6. System Physiology – Plant

One of the enzyme that are involve in the ammonium assimilation is Asparagine synthetase (AS), some statements given below about AS such as,

a) This enzyme that catalyzes this reaction, is found in the cytosol of leaves and roots and in nitrogen-fixing nodules

b) High levels of light and carbohydrate inhibit the expression of genes coding for AS and the activity of the enzyme

c) Conditions of ample energy stimulate AS, thus they favor nitrogen assimilation into glutamine and glutamate

d) Energy-limited conditions inhibit GS and GOGAT, stimulate AS, and thus favor nitrogen assimilation into asparagine, a compound that is rich in nitrogen and sufficiently stable for long-distance transport or long term storage

Which of the following statements about AS is correct?