#Question id: 2794
#Unit 2. Cellular Organization
All the following statements about heterochromatin except:
#Question id: 20310
#Unit 7. System Physiology – Animal
#Question id: 4686
#Unit 3. Fundamental Processes
Bacteriophage λ, has two mode of life cycle; lytic and lysogenic. In the lytic growth
a) a single Cro dimer is bound to OR3; this site overlaps PRM and so Cro represses that promoter
b) Repressor bound at OR1 and OR2 blocks RNA polymerase binding at PR, repressing transcription from that promoter
c) PR and PL binds RNA polymerase and directs transcription of lytic genes
d) During lytic, PRM is on while PR (and PL) are off
Find the correct combinations of lytic growth.
#Question id: 1371
#Unit 4. Cell Communication and Cell Signaling
A researcher was studying a protein ‘A’ which has been observed to move across cells when an extracellular electrical stimulus is provided. An artificial peptide ‘Z’ was prepared which resembles the structure of pannexins and competitively inhibits pannexon formation. Which one of the following statements will best explain the fate of protein ‘A’ if, the cells are treated with peptide ‘Z’ and then, electrical stimulus is provided.
#Question id: 522
#Unit 1. Molecules and their Interaction Relevant to Biology
Yeast will normally convert pyruvate to ethanol. Why is this better for the yeast than a conversion to lactate?