After transcription of eukaryotic genes, sequences are removed from the new RNA molecule, while sequences are stitched together during the process called.

The given blanks can be filled with intron sequences, exons, and splicing.

Explanation:

At the time of eukaryotic genes transcription, the sequences of the intron are withdrawn from the novel molecule of RNA, while the sequences of exons are attached during the process known as splicing. Introns are the sequences of RNA or DNA molecule, which does not code for proteins and obstructs the alignment of genes.

A sequence of RNA or DNA molecules that comprise information coding for a peptide or protein sequence is known as an exon. The process in which the introns are withdrawn from the pre-RNA with the assistance of spliceosome and attachment of exons is done is known as splicing. This process is essential for the translation of a functional protein, and it takes place in the nucleus before the migration of RNA to the cytoplasm.