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.

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#Question id: 12496

#Unit 8. Inheritance Biology

A woman who has two brothers and a maternal uncle (her mother's brother) with non-specific X-linked mental retardation is referred for genetic counselling. There are no diagnostic tests available to help determine whether or not she is a carrier. Which of the following is correct?

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#Question id: 21251

#Unit 12. Applied Biology

Polyhydroxyalkanoates are a class of

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#Question id: 29431

#Unit 6. System Physiology – Plant

The number of ATP molecules required for the complete assimilation of one molecule of CO2 in Calvin cycle is _____.

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#Question id: 28378

#Unit 5. Developmental Biology

 Which of the following gene is activated in those bands of cells that receive little or no Even-skipped or Fushi tarazu protein, but which do contain Sloppy-paired

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#Question id: 81

#Unit 1. Molecules and their Interaction Relevant to Biology

The Fischer projections of linear D-glucose and D-galactose are shown below. These two molecules are