Transcription!

Given the template strand, what is the mRNA strand?

5'- GATGAAC -3'

• 5'- GUUCAUC -3'

• 5'- CUACUUG -3'

• 5'- GAACUAC -3'

• 5'- GTTCATC -3'

In splicing, _________ are removed and __________ are connected.

• Introns; exons

• Caps; tails

• Exons; introns

• Sigma factors; nucleotides

Transcription occurs in the _______ of prokaryotes, and in the _________ of eukaryotes.

• Cytoplasm ; cytoplasm

• Nucleus ; ribosome

• Nucleolus ; nucleus

• Cytoplasm ; nucleus

• Nucleoid ; cytoplasm

What is the central dogma?

• DNA --> mRNA --> tRNA --> rRNA

• Template strand --> coding strand --> mRNA

• Nucleus --> cytoplasm --> ribosome

• DNA --> mRNA --> protein

Tags

NGSS.HS-LS1-1

In prokaryotes, the ________ delivers the ____________ to the promotor region of the DNA.

• RNA Polymerase; ribosome

• sigma factor; RNA Polymerase

• Splisosome; sigma factor

• Sigma factor; mRNA

Given the coding strand, what is the template strand?

5'- AGCTTA -3'

• 5'- ATTCGA -3'

• 5'- UCGAAU -3'

• 5'- TAAGCT -3'

• 5'- TCGAAT -3'

What is the function of RNA polymerase?

• To recognize the promotor region

• To recognize the transcribed region

• To synthesize RNA

• To hydrolyze RNA

• To "read" the coding strand

Which of the following happens during the initiation step of transcription? Select all that apply!

• The sigma factor recognizes the promotor

• RNA polymerase synthesizes the mRNA strand

• RNA polymerase binds to the DNA

• Ribonucleotides are added to the mRNA strand

Which of the following are exceptions to the central dogma? Select all that apply!

• DNA --> mRNA

• DNA --> tRNA

• DNA --> rRNA

• RNA --> DNA (retroviruses)

Which of the following occurs during the elongation phase of transcription? Select all that apply!

• RNA polymerase unwinds the DNA, forming an open complex

• RNA polymerase base pairs nucleotides to the coding strand

• RNA polymerase base pairs nucleotides to the template strand

• The sigma factor "reads" the coding strand, fixing mistakes

• The sigma factor dissociates