DNA, RNA and Protein Synthesis Flashcards
Enzyme that removes pyrimidine-pyrimidine dimers occuring in between two thymines due to exposure to UV light
UV endonuclease
In DNA replication, this enzyme reads each of the old strands in 3’ to 5’ direction
DNA Polymerase III
In DNA replication, complementary strand is synthesized in what direction
5’ to 3’
Enzyme that proofreads the newly synthesized strands by removing any incorrect nucleotide and inserting the correct one
DNA polymerase III
The new strand synthesized complementary to the old 5’ to 3’ strand is called
Lagging strand. This is synthesized as fragments called okazaki fragments.
The new strand synthesized complementary to thw old 3’ to 5’ strand is called
Leading strand, this is copid continuously without interruption
The strand complementary to three 5’ to 3’ is synthesized as _______
Okazaki fragment. These are later joined together by ligases. Lagging strand is synthesized discontinuously
What are the equivalent enzymes in eukaryotes of these prokaryotic enzymes
DNA Polymerase I
DNA Polymerase II
DNA Polymerase III
DNA Polymerase alpha, beta and gamma
This DNA enzyme functions for
5’ to 3’ elongation
3’ to 5’ exonuclease
5’ to 3’ exonuclease
DNA polymerase I
For DNA polymerase II and III, only the first 2 functions
DNA polymerase for DNA repair in prokaryotes
DNA polymerase I
DNA Polymerase for chain elongation in prokaryotes
DNA polymerase II
DNA polymerase for chain elongation in prokaryotes
DNA polymerase II
DNA polymerase for DNA replication for prokaryotes
III
DNA polymerase for replication in eukaryotes
Alpha
DNA polymerase for repair in eukaryotes
Beta
