Questions

What is the difference between duplication and replication?

What is the difference between duplication and replication?

The main difference between replication and duplication of DNA is that replication is the synthesis of an exact replica of DNA while duplication is the doubling of the amount of DNA as a result of replication.

What is duplicated during the S phase?

During the S phase, DNA is duplicated into two sister chromatids, and centrosomes, which give rise to the mitotic spindle, are also replicated.

What happens at S phase of cell cycle?

S phase. In S phase, the cell synthesizes a complete copy of the DNA in its nucleus. It also duplicates a microtubule-organizing structure called the centrosome. The centrosomes help separate DNA during M phase.

Where does DNA replication take place during S phase?

Throughout M phase and G1 phase, cells assemble inactive pre-replication complexes (pre-RC) on replication origins distributed throughout the genome. During S-phase, the cell converts pre-RCs into active replication forks to initiate DNA replication.

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What is the difference between replicate and duplicate in biology?

What is the difference between replication and repeated experiments?

Repeat and replicate measurements are both multiple response measurements taken at the same combination of factor settings; but repeat measurements are taken during the same experimental run or consecutive runs, while replicate measurements are taken during identical but different experimental runs, which are often …

Why is it important that the chromosomes be duplicated in the S phase?

Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division. If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.

Why must the DNA be duplicated during the S phase of the cell cycle prior to mitosis?

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

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What is the S phase called?

S phase, or synthesis, is the phase of the cell cycle when DNA packaged into chromosomes is replicated. This event is an essential aspect of the cell cycle because replication allows for each cell created by cell division to have the same genetic make-up.

Which phase the DNA is replicated?

S phase
In the eukaryotic cell cycle, chromosome duplication occurs during “S phase” (the phase of DNA synthesis) and chromosome segregation occurs during “M phase” (the mitosis phase).

How many base pairs are replicated in the S phase?

3.2 billion base pairs
There is none of the chromosome acrobatics or morphological metamorphoses that make mitosis so visually distinctive. At the molecular level, however, a dramatic transition occurs as the cell begins the enormous task of duplicating each of the 3.2 billion base pairs that make up its DNA.

What is the difference between replicate and reproduce?

As verbs the difference between reproduce and replicate is that reproduce is to produce an image or copy of something while replicate is to make a copy (replica) of.

What happens during the G phase of DNA replication?

During the two G phases, cell growth, protein synthesis,and enzyme synthesis are occurring, while during the S phase DNA is replicated. DNA replication occurs without increasing the chromosome number; in this way, there is enough DNA in the cell for two daughter cells, maintaining the same ploidy (number of chromosomal sets) as the parent cell.

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What is DNA replication?

DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell.

What happens during the S phase of the cell cycle?

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

What phase of DNA replication is karyokinesis?

DNA replication occurs during the S phase; chromosome separation (karyokinesis) takes place during the M phase, and is followed by cell division (cytokinesis); G1 and G2 are gap or growth phases.