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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.

The human genome has three billion base pairs per haploid set of chromosomes, and 6 billion base pairs are replicated during the S phase of the cell cycle.

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

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

From Textbooks • Apr. 25, 2013

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 • Apr. 25, 2013