2nd sem: Replication and Repair Flashcards
DNA replication Termination of DNA S phase Cyclins Repair mechanisms DNA repair
DNA synthesis confers the where signal in the eukaryotic gene
TATA box
which RNA polymerase synthesizes the ribosomal RNA?
RNAP I
in prokaryotes the RNA primer is removed by which polymerase
POL I
which of the prokaryotic DNA polymerase synthesizes the leading strand
POL III
enzyme inhibited by quinolone group of antibiotics
DNA gyrase
polymerases synthesize mitochondrial DNA eukaryotic polymerase
gamma
what is the lagging strand replicase in eukaryotic DNA polymerase
DELTA
the regulatory signals where transcription factors bind is found in what strand of the DNA
coding strand
streptomycin inhibits what step in translation
initiation of polypeptide chain synthesis
the replication fork is formed by the following sequence of events except
DNA ligase connects to okazaki fragments
true regarding replication
the origin of replication is adjacent to a region rich in adenine and thymine
the chemical reaction on lysine residues of histones disrupts the nucleosome by decreasing its affinity to DNA
acetylation
each codon specifies only one amino acid which means the genetic codes is
unambiguous
there is no tRNA with an anticodon for this triplet in the genetic code
UAA
what is the function of DnaB protein in prokaryotes
its unwinds short segments of DNA
some amino acids may have 2 or more codons because the genetic code is
degenerate
the following prevents the seperated strands of the DNA duplex from REANNEALING
SSB
in what step of transcription is RNA polymerase is not needed
post transcriptional modification
initiation of polypeptide chain synthesis requires this codon
AUG
the DNA sequence identifies the transcription start sites in the prokaryotic gene
pribnow box (TATAAT box)
