In a eukaryotic cell, where does transcription of a protein-coding gene take place, and what is made?
Answer and explanation
Correct answer: B. In the nucleus, where RNA polymerase makes a pre-mRNA copy of the gene
- Step 1: Eukaryotic DNA stays in the nucleus, so transcription happens there.
- Step 2: RNA polymerase reads the template strand and builds a complementary pre-mRNA, which is processed before it leaves the nucleus.
Answer
in the nucleus, RNA polymerase makes pre-mRNA.
Why not the others: Ribosomes build proteins, not RNA; DNA polymerase is used in replication; tRNA carries amino acids and does not copy genes.
Practise more Nucleic Acids, Proteins, Enzymes and Cellular Energy.
Free questions with an explanation for every one, and full timed Victorian VCE mock tests.
More Nucleic Acids, Proteins, Enzymes and Cellular Energy questions
- Which type of bond holds the two strands of a DNA double helix together?
- The template strand of a gene reads 3'-TACGGA-5'. Which mRNA is produced?
- A mutation changes the codon UCA to UCG in an mRNA, and both codons code for serine. This is best described as:
- One nucleotide is deleted near the start of a coding region in gene X. In gene Y, three consecutive nucleotides are deleted at a similar pos…
- Which description matches the quaternary structure of a protein?
- According to the induced fit model, what happens when a substrate binds to an enzyme?