The punctuated line should be filled with the word 'messenger RNA' (mRNA). It is the final product of gene transcription.
What is gene transcription?
Gene transcription is the cellular process by which a fragment of DNA called gene is used as a template to create a complementary RNA molecule called messenger RNA (mRNA).
Subsequently, this mRNA travels to the ribosomes where it is used as a template to generate a protein by a process called translation.
In eukaryotes, gene transcription is a complex process that involves different types of enzymes (e.g., RNA polymerase II to add specific nucleotides).
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