chromosomes can maintain its structure due to
the special protein in its core (HISTONE)
What do RNA Primers do?
are a starting point for DNA strand elongation by DNA polymerase
what direction does DNA Polymerase go
5’ to 3’
semiconservative
each DNA strand makes a copy of its complimentary base pair
which enzyme relieves tension from the unwinding of supercoils?
DNA Gyrase/ topoisomerase
which enzyme joins the phosphodiester bonds between Okazaki fragments?
Ligase
Chargaff’s rule
paring of bases (A=T G=_C)
DNA Polymerase Functions
- insert new bases during elongation, using the parental strand as a template
- proof reads new strands (and corrects them)
- can differentiate between the parent and new strand
- Removes primers and replaces them with DNA
DNA Helicase function
to break the H+ Bonds between 2 strands of DNA molecules
SSB Meaning and function
Single Stranded binding proteins
Blocks the H+ bonds in between two parental strands from reforming (RE-ANNEALING)
RNA Primase function
Reads DNA and forms a complimentary primer
When does replication happen?
S-phase
When is DNA condensed?
beginning of M phase
what structure holds two sister chromatids
centromere
