Question

which process is part of transcription?
dna is copied to create a second dna strand.
mrna codons and trna anticodons assemble amino acids
dna is unzipped with the aid of dna polymerase.
mrna is synthesized from a strand of dna

Explanation:

Step1: Analyze each option

• Option 1: DNA is copied to create a second DNA strand. This is DNA replication, not transcription.
• Option 2: mRNA codons and tRNA anticodons assemble amino acids. This is part of translation.
• Option 3: DNA is unzipped with the aid of DNA polymerase. DNA polymerase is mainly involved in DNA replication.
• Option 4: mRNA is synthesized from a strand of DNA. This is the core process of transcription.

Answer:

mRNA is synthesized from a strand of DNA.