Indicate true (T) and false (F) statements below regarding peroxisomal proteins. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF. ( ) All peroxisomal proteins are encoded in the nucleus. ( ) Some peroxisomal proteins are synthesized by ribosomes attached to the rough endoplasmic reticulum. ( ) All peroxisomal proteins reach the organelle after their synthesis is completed. ( ) Peroxisomal proteins have to be unfolded before import.