1a.The decision between lysis and lysogeny for phage lambda is governed by the n

Question

1a.The decision between lysis and lysogeny for phage lambda is governed by
   the number of infecting particles per cell
   the properties of lambda repressor
   the cellular level of cyclic AMP
   all of the above

1b.What is NOT true of viroids?
   they do not encode for protein
   only cause disease in plants
   they can be made of DNA or RNA
   they proliferate using rolling-circle replication

1c.What characteristics ARE true of prions?

   are caused by the mis-folding of normal protein sequences
   can be easily managed and can be destroyed by normal disinfectants
   are infectious and can be inherited without a nucleic acid component
   A and C
   all of the above

Explanation / Answer

1a) "The decision between lysis and lysogency for governed by the lambda reprocessor". The lysis-lysogency decision of the temperate lambda phage has emerged for understanding developmental genetic networks.

1b) Viroids donot cause disease in plants. They just infect the plants and in very rare cases some of them cause disease to the plants. Viroids are plant pathogens and they produce only single specific molecule.

1c) Prions are high resisitant to disinfectants,heat,ultraviolet radiation,ionizing etc...Prions can be destroyed only through incineration and it cannot be destroyed by using disinfectants, So i hope option A and C are correct

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