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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.

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

During interphase, G1 involves cell growth and protein synthesis, the S phase involves DNA replication and the replication of the centrosome, and G2 involves further growth and protein synthesis.

From Textbooks • Apr. 25, 2013

The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis.

From Textbooks • Apr. 25, 2013

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

From Textbooks • Apr. 25, 2013

A cell that does not meet all the requirements will not be released into the S phase.

From Textbooks • Apr. 25, 2013

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