we conclude that mutant ts ( - ) 136 is defective either in the synthesis of all types of cytoplasmic rna , or in the transport of newly synthesized rna from the nucleus to the cytoplasm , and that the mrna of a eucaryotic organism ( yeast ) is metabolically unstable , having a half-life of approximately 23 min at 36 c .
C0035668
rna
C0035696
mrna