What are the 6 steps of DNA replication?
The complete process of DNA Replication involves the following steps:
- Recognition of initiation point.
- Unwinding of DNA –
- Template DNA –
- RNA Primer –
- Chain Elongation –
- Replication forks –
- Proof reading –
- Removal of RNA primer and completion of DNA strand –
Why does DNA replication happen where does it happen?
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Where does the transcription take place?
nucleus
In eukaryotes, transcription and translation take place in different cellular compartments: transcription takes place in the membrane-bounded nucleus, whereas translation takes place outside the nucleus in the cytoplasm. In prokaryotes, the two processes are closely coupled (Figure 28.15).
Why DNA replication is needed?
Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.
Which event first takes place during DNA replication?
The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA? molecule. This is carried out by an enzyme? called helicase which breaks the hydrogen bonds? holding the complementary? bases? of DNA together (A with T, C with G).
Where does DNA replication take place in the cell cycle?
S phase
Replication of the DNA occurs during the S phase of interphase. Interphase is essentially the first and longest phase of the cell cycle characterized by three distinct phases: growth phase 1 (G1), synthesis (S) phase, and srowth phase 2 (G2).
In which stage DNA replication takes place?
S phase is the period during which DNA replication occurs.
Where does translation take place in cell?
the ribosome
Where Translation Occurs. Within all cells, the translation machinery resides within a specialized organelle called the ribosome. In eukaryotes, mature mRNA molecules must leave the nucleus and travel to the cytoplasm, where the ribosomes are located.
Where does replication take place?
In humans, DNA is found in the nucleus of cell. The process of replication (which copies DNA) must take place in the nucleus since this is where the DNA is found.
