Question

in eukaryotic cells, mrna (messenger rna) is produced in the nucleus during the process of transcription. transcription involves the copying of a dna sequence into an mrna molecule, which can then be exported from the nucleus and translated into a protein in the cytoplasm by the ribosomes.
in the following image, transcription of mrna is depicted as taking place within the nucleus.
what is true about mrna during transcription?
mrna disappears slowly from the cell.
dna sequence is copied into mrna molecules.
mrna is not in transcription.

Explanation:

Transcription is the process of copying a DNA sequence into an mRNA molecule. The image shows mRNA being transcribed from DNA within the nucleus. The other options are incorrect: mRNA degradation (disappearing slowly) is not part of transcription, and mRNA is very much involved in transcription as it is the product.

Answer:

DNA sequence is copied into mRNA molecules.