Let AMBIGCFG = {hGi| G is an ambiguous CFG}. Show that AMBIGCFG is undecidable. (Hint: Use a reduction from PCP. Given an instance P =ht1 b1i, ht2 b2i, ... ,htk bki of the Post Correspondence Problem, construct a CFG G with the rulesS T | B T t1Ta1 | | tkTak | t1a1 | | tkak B b1Ba1 | | bkBak | b1a1 | | bkak ,where a1,...,ak are new terminal symbols. Prove that this reduction works.)
Cell Bio Fig 12-1 o Membrane enclosed organneles in eukaryotes o Distinct compartments isolated from the rest oof the cell by at least one selectively permeable membrane o Golgi- o Attention: cytosol(jelly) vs cytoplasm (included organelles) Table 12-1 o Membrane enclosed organelles together occupies half the volume of the cell Fig 12-7 o Nucleus o Double membrane- nuclear envelope o Interconnected to ER- the outer membrane is o Nuclear lamina- fibrous protein meshwork underlying the inner membrane o Commuicates with cytosal via nuclear pores Fig 12-31 o ER o Extends as a network of tubules and s
