The replication of DNA occurs whenever the cell needs the S shape division. This happens since when we divide, enough DNA is needed to be pass on to our daughters.
Two strands of DNA must separate
the double helix must unwind
Separation of the DOuble Helix
DNA replication mus occur before mitosis starts. Mitosis is another word for cell division and so there must be two copies of DNA for each cell at the end stage.
Unwind part of the original DNA molecule :)
Telophase is a phase of mitosis. DNA replication must occur before mitosis begins. If it does not then the DNA chromosomes may not be consistent throughout the division of the cells.
DNA replication
the double helix must unwind
Separation of the DOuble Helix
DNA replication occurs during Interphase. This is not normally part of the cell division cycle but interphase must occur before subsequent stages such as prophase and metaphase can occur.
DNA replication mus occur before mitosis starts. Mitosis is another word for cell division and so there must be two copies of DNA for each cell at the end stage.
Unwind part of the original DNA molecule :)
Telophase is a phase of mitosis. DNA replication must occur before mitosis begins. If it does not then the DNA chromosomes may not be consistent throughout the division of the cells.
DNA replication
DNA replication must occur before cell division to make sure that the daughter cells are genetically identical.
A duplication of the chromosomes is what must happen before meiosis can begin.
DNA replication occurs during Interphase. This is not normally part of the cell division cycle but interphase must occur before subsequent stages such as prophase and metaphase can occur.
the DNA poly-meres must add complementary nucleotides to the DNA
the hydrogen bonds between the nitrogen bases must be broken and the molecule must unwind.