BISC 261 Chapter 10 Test with
Questions with 100% Correct Answers
What is a TATA box? - Answer for archaea
What are RNA polys like in A & E? - Answer * In Transcription, RNA polymerases in
Archaea and Eukarya have additional subunits that bacterial RNA polymerase lacks
- Archaea & eukarya RNA poly is very similar
What do archaea & eukaryotic protein coding genes have? - Answer * promoters
upstream of the transcribed gene
What are the proteins used by archaea & eukarya? - Answer very similar
What don't archaea use? - Answer * do not use σ factor subunits, Instead,
transcription factors bind to these upstream elements
How does translation & transcription occur in bacteria & archaea? - Answer
* simultaneously, not true for eukaryotes
, How is translation initiated in bacteria? - Answer when Formyl-Met (AUG) is
recognized by bacterial small ribosomal subunit
What do many archaea not have? - Answer SD sequences
What is archaea translation like? - Answer eukarya
What do archaea & eukarya use for AUG? - Answer MET which is recognized by
the small ribosomal subunits
What do archaea & eukarya use? - Answer the same translation initiation factors, but
eukaryotes have unique translation initiation factors that are found only in this domain.
Describe archaea - Answer * Archaea organize their genes into functional operons
* The entire operon is transcribed to form polycistronic mRNA with multiple
coding regions that need to be translated.
* Archaeal translation occurs simultaneously with transcription at the nucleoid
* Some archaeal genes contain introns, but the splicing mechanisms are quite
different than in eukaryotes
The Central Dogma - Answer * DNA -> RNA -> Protein
- To go from DNA → RNA: you do transcription
- To go from DNA → proteins: you do translation
What is a protein? - Answer * A.A composed of an amino group
Has nitrogen (an amino group)
* The R group varies & the R group makes the proteins different & helps you
tell different proteins apart
Questions with 100% Correct Answers
What is a TATA box? - Answer for archaea
What are RNA polys like in A & E? - Answer * In Transcription, RNA polymerases in
Archaea and Eukarya have additional subunits that bacterial RNA polymerase lacks
- Archaea & eukarya RNA poly is very similar
What do archaea & eukaryotic protein coding genes have? - Answer * promoters
upstream of the transcribed gene
What are the proteins used by archaea & eukarya? - Answer very similar
What don't archaea use? - Answer * do not use σ factor subunits, Instead,
transcription factors bind to these upstream elements
How does translation & transcription occur in bacteria & archaea? - Answer
* simultaneously, not true for eukaryotes
, How is translation initiated in bacteria? - Answer when Formyl-Met (AUG) is
recognized by bacterial small ribosomal subunit
What do many archaea not have? - Answer SD sequences
What is archaea translation like? - Answer eukarya
What do archaea & eukarya use for AUG? - Answer MET which is recognized by
the small ribosomal subunits
What do archaea & eukarya use? - Answer the same translation initiation factors, but
eukaryotes have unique translation initiation factors that are found only in this domain.
Describe archaea - Answer * Archaea organize their genes into functional operons
* The entire operon is transcribed to form polycistronic mRNA with multiple
coding regions that need to be translated.
* Archaeal translation occurs simultaneously with transcription at the nucleoid
* Some archaeal genes contain introns, but the splicing mechanisms are quite
different than in eukaryotes
The Central Dogma - Answer * DNA -> RNA -> Protein
- To go from DNA → RNA: you do transcription
- To go from DNA → proteins: you do translation
What is a protein? - Answer * A.A composed of an amino group
Has nitrogen (an amino group)
* The R group varies & the R group makes the proteins different & helps you
tell different proteins apart
