Final answer:
The statement in the question is false because RNA processing involves modifications to RNA transcripts, not the removal of amino acids from proteins, which is a separate process that occurs after protein synthesis.
Step-by-step explanation:
The statement 'RNA processing occurs when amino acids are removed from nascent proteins' is false. RNA processing refers to the modifications that an RNA transcript undergoes before it becomes mature RNA and is different from the processing of nascent proteins.
RNA processing includes the addition of a 5' cap, poly-A tail, and the excision of introns with the splicing of exons. It occurs in the nucleus before the RNA is translated into protein. Protein processing happens after translation and involves steps such as the removal of signal sequences, folding, proteolytic processing, and chemical modifications. This can include the removal or alteration of certain amino acids but occurs after RNA processing and translation, not as a part of RNA processing itself.