Unwinds DNA during replication
Recognize splice sites and combine
with proteins to form spliceosomes
Joins Okazaki fragments on the
Adds deoxyribonucleotides to
lagging strand
the 3’ end of an existing chain
RNA molecules that function as
Removes RNA primers and replaces
enzymes
them with deoxyribonucleotides
Adds segments to the ends of
Binds to the promoter and adds
chromosomes to prevent
ribonucleotides during transcription
shortening during replication
Editing complex containing
Charges up tRNA’s by adding the
“snurps” that removes introns
correct amino acid
and splices together exons
Adds short RNA segments
Short fragments made when the
to which DNA polymerase III can
lagging strand is copied during
can attach nucleotides during
replication
replication
Stabilize the unwound DNA
Bind to operator sites of operons to
strand at the replication fork
“turn off” genes
“death tag” that marks proteins
Bind to mRNA’s and tag them for
for degradation by proteosomes
digestion by ribonucleases
Type of RNA made by the nucleolus;
Type of RNA containing the codon
combines with proteins to make
region that is edited in eukaryotes
protein synthesis machinery
before translation
Type of RNA containing the
Region on DNA where RNA
anticodon sequence that brings
polymerase binds to start the
correct amino acid into the
transcription
ribosome
DNA segment upstream from
Place in an operon where the
promoter that contains multiple
repressor binds to “turn off” the
control elements to speed up
gene
transcription
Amino acid polymer produced by
Enzyme found in RNA viruses that
Ribosomes during translation
catalyzes the production of DNA
from an RNA template
HELICASE
DNA LIGASE
snRNP’s (SNURPS)
DNA POLYMERASE III
RIBOZYMES
DNA POLYMERASE I
small nuclear ribonuclear proteins
TELOMERASE
RNA POLYMERASE
SPLICEOSOMES
PRIMASE
AMINOACYL tRNA
OKAZAKI
SYNTHETASE
SINGLE STRANDED
REPRESSOR
BINDING PROTEINS
UBIQUITIN
siRNA’s
PROMOTER
ENHANCER
(small interfering RNA)
OPERATOR
transfer RNA
(tRNA)
messenger RNA
(mRNA)
POLYPEPTIDE
ribosomal RNA
(rRNA)
Reverse
Transcriptase