DNA
Protein
Nuclei
Synthesi
s
c RNA
Acids
DNA
Replicatio
n
DNA – made up of nucleotides (nucleotides are
the building blocks of nucleic acids)
Has 4 nitrogenous bases : 1) adenine
2)
thymine
3)
guanine
4)
cytosine
DNA is a double stranded helix molecule.
DNA has deoxyribose as sugar.
, RNA – also made up of nucleotides
Has 4 nitrogenous bases : 1) adenine
2) uracil
3)
guanine
4)
cytosine
RNA has ribose as sugar.
RNA is a SINGLE stranded molecule
DNA Replication – process where DNA molecule
makes exact copy of itself
***Takes place in the interphase BEFORE mitosis
or meiosis***
DNA Replication is important because:
1) It doubles the genetic material and
2) leads to the formation of identical
daughter cells
Process of DNA replication
1.The double helix unwinds
2.The weak hydrogen bonds break and two
DNA strands are separated
3.Each of the original strands serve as
template for the complementary strand to be
built on
Protein
Nuclei
Synthesi
s
c RNA
Acids
DNA
Replicatio
n
DNA – made up of nucleotides (nucleotides are
the building blocks of nucleic acids)
Has 4 nitrogenous bases : 1) adenine
2)
thymine
3)
guanine
4)
cytosine
DNA is a double stranded helix molecule.
DNA has deoxyribose as sugar.
, RNA – also made up of nucleotides
Has 4 nitrogenous bases : 1) adenine
2) uracil
3)
guanine
4)
cytosine
RNA has ribose as sugar.
RNA is a SINGLE stranded molecule
DNA Replication – process where DNA molecule
makes exact copy of itself
***Takes place in the interphase BEFORE mitosis
or meiosis***
DNA Replication is important because:
1) It doubles the genetic material and
2) leads to the formation of identical
daughter cells
Process of DNA replication
1.The double helix unwinds
2.The weak hydrogen bonds break and two
DNA strands are separated
3.Each of the original strands serve as
template for the complementary strand to be
built on
