S phase

American  

noun

Cell Biology.

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

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Etymology

Origin of S phase

First recorded in 1940–45

Example Sentences

Completing the S phase of the cell cycle at night provided a selective advantage.

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

The centrosome is duplicated during the S phase.

From Textbooks • Jun. 9, 2022

One of the critical processes monitored by the cell cycle checkpoint surveillance mechanism is the proper replication of DNA during the S phase.

From Textbooks • Jun. 9, 2022

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

From Textbooks • Apr. 25, 2013