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S phase

American  

noun

Cell Biology.
  1. the period of the cell cycle prior to mitosis, during which the chromosomes are replicated.


Etymology

Origin of S phase

First recorded in 1940–45

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A cell that does not meet all the requirements will not be allowed to progress into the S phase.

From Textbooks • Jun. 9, 2022

The centrosome is duplicated during the S phase.

From Textbooks • Jun. 9, 2022

In the S phase, DNA replication can proceed through the mechanisms that result in the formation of identical pairs of DNA molecules—sister chromatids—that are firmly attached to the centromeric region.

From Textbooks • Jun. 9, 2022

As a cell is exposed to more stress, higher levels of p53 and p21 accumulate, making it less likely that the cell will move into the S phase.

From Textbooks • Jun. 9, 2022

In the S phase, the DNA of the chromosomes is replicated.

From Textbooks • Apr. 25, 2013

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