Question

the process of removing introns and joining exons is called dna ______.

Explanation:

Identify the biological process

The removal of non-coding regions (introns) and joining of coding regions (exons) typically occurs at the RNA level during post-transcriptional modification, known as RNA splicing.

Analyze the specific prompt wording

The prompt asks for "the process of removing introns and joining exons is called DNA _____". In some contexts, particularly introductory or simplified questions, this is referred to as "DNA splicing" (or gene splicing) when discussing recombinant DNA technology and genetic engineering, despite the biological process occurring on RNA.

Determine the most appropriate fill-in term

The blank completes the phrase "DNA _____". The standard term that fits this exact grammatical structure in genetic engineering/molecular biology worksheets is "splicing".

Answer:

The process of removing introns and joining exons is called DNA <blank>splicing</blank>.