Transcription involves the enzyme RNA polymerase assembling an mRNA molecule that is complementary to a DNA strand. Translation uses ribosomes to assemble a polypeptide chain whose amino acid sequence is specified by the nucleotide sequence in mRNA. Both transcription and translation are important steps in gene expression where DNA is used to synthesize protein.

2. Transcription:
• Transcription in which enzyme RNA polymerase
assemble an mRNA molecule on template DNA stand.
 It nucleotide sequence is complementary to DNA
stand.
Translation:
• Translation in which ribosome assemble a polypeptide
chain whose amino acid sequence is specified by the
nucleotide sequence in mRNA.