DNA + Gene Expression

DNA replication always occurs...

• in a 3' to 5' direction

• in a 5' to 3' direction

The enzyme that unwinds and unzips the DNA is

• Ligase

• RNA primase

• helicase

• topoisomerase

RNA is transcribed ...

• in a 5' to 3' direction

• in a 3' to 5' direction

• off both sides of the DNA

• using DNA pol

DNA replication requires all EXCEPT

• A, T, C + G nucleotides

• DNA Pol III

• start codon

• an RNA Primer

True or false the promoter region is transcribed.

• TRUE

• False

The initiation complex for transcription includes

(select all the apply)

• the promoter

  region

• TATA

  box

• RNA pol

• transcription

  factors

Translation always begins ...

(Select all that apply)

• at the 3' end

  of the mRNA

• at the 5' end

  of the mRNA

• at the start codon

• at the AUG codon

Processing the pre-mRNA involves ...

• removing the

  exons

• removing the introns

• adding a 3' cap

• adding a 5' tail

The enzyme that joins the Okazaki fragments during replication is

• Ligase

• exonucleases

• Primase

• topoisomerase

The enzyme that relieves tension on the unzipping DNA is

• Ligase

• exonucleases

• Primase

• topoisomerase