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

Using both members of each homologous pair for chromosomes 1–3, model how the chromosomes would appear in a cell that had just finished the S phase of the cell cycle.

From Textbooks • Jun. 9, 2022

While all cells will be exposed to BrdU, BrdU will only be incorporated into the DNA of newly generated cells that are in S phase.

From Textbooks • Jun. 9, 2022

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

From Textbooks • Jun. 9, 2022

The centrosome is duplicated during the S phase.

From Textbooks • Jun. 9, 2022

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