MODULE 8: THE NUCLEIC ACIDS (MIGRIÑO) Flashcards
This enzyme catalyzes in the breakage of H bonds of DNA.
A. ssDNA binding proteins (SSB)
B. DNA Helicase
C. Primase
D. DNA polymerase II
B. DNA Helicase
The only form of the double helix structure that is left-handed.
A. B form
B. Z form
C. A form
D. C form
B. Z form
Part of tRNA where the amino acid is attached.
A. Anticodon arm
B. D arm
C. Acceptor arm
D. Thymidine-Pseudouridine-Cytdine arm
C. Acceptor arm
Recognition site for specific aminoacyl-tRNA synthetase
A. Anticodon arm
B. D arm
C. Acceptor arm
D. Thymidine-Pseudouridine-Cytdine arm
B. D arm
Binds aminoacyl tRNA to ribosomal subunit.
A. Anticodon arm
B. D arm
C. Acceptor arm
D. Thymidine-Pseudouridine-Cytdine arm
D. Thymidine-Pseudouridine-Cytdine arm
Type of RNA used in RNA splicing and mRNA regulation.
A. mRNA
B. tRNA
C. sRNA
D. rRNA
C. sRNA
Most heterogenous RNA that used as template in translation.
A. mRNA
B. tRNA
C. sRNA
D. rRNA
A. mRNA
Enzyme that catalyzes DNA transcription
RNA Polymerase
Responsible for RNA elongation.
A. Holoenzyme
B. Core enzyme
C. Termination factor
B. Core enzyme
Increase affinity for promoter.
A. Holoenzyme
B. Core enzyme
C. Termination factor
A. Holoenzyme
Signals end of transcription.
Termination factor
The mechanism of action of Rifampicin binds to beta subunit and blocks this particular step in DNA transcription.
Initiation step
This drug stops RNA elongation by binding to transcription initiation complex in the dsDNA and intercalates with DNA grooves.
Dactinomycin
TRUE or FALSE: More methylation = more transcription
FALSE. More methylation means less transcription
More acytelation =
A. Less transcription
B. More trancription
C. No transcription
D. No change in transcription
B. More trancription
