Mini Quiz 2: Transcription

Transcription is

• A process of interpreting the genetic information in mRNA into sequences of amino acids.

• A process in which genetic information in DNA is replicated to form new DNA strands

• A process in which genetic information in DNA is transcribed to form mRNA

• A theoretical step in the production of proteins

Transcription occurs in

• Cytoplasm

• Nucleus

• Ribosome

• Golgi Apparatus

The enzyme involved in transcription is

• RNA polymerase

• DNA polymerase II

• DNA transcriptase

• Promoter protein

Arrange the following in the correct order:

• RNA polymerase binds to promoter on DNA and unwinds it.

• mRNA synthesis occurs using one of the DNA strands as template.

• As RNA polymerase moves downstream, it unwinds the DNA and elongates the mRNA transcript in 5’ to 3’ direction.

• The process terminates when RNA polymerase reaches "stop signal" at termination site.

What happens if the promoter region is mutated?

• Transcription continues as normal.

• RNA polymerase will not be able to bind to promoter.

• mRNA transcribed will have different promoter codons.

Select the CORRECT statement.

• Transcription occurs in eukaryotes only.

• The mRNA produced contains information to synthesize protein needed by the cell.

• Each gene can only be transcribed once.

• Transcription requires the whole length of DNA.