Sister chromatids — Science definition
Defined in 2 courses:
- The two identical copies of a chromosome joined after replication; counted as one chromosome until they separate. (Life Science & Scientific Inquiry)
- The two identical copies of a chromosome, joined together, that result when a cell copies its DNA. (Life Science: Biology)
Where it is taught
- The Cell Cycle & Mitosis — Genes, Cell Division & Heredity, Life Science & Scientific Inquiry, Grade 7
- Mitosis & the Cell Cycle — Cell Division, Reproduction & Development, Life Science: Biology, Grade 10
In use
That copying is replication, and it produces for each chromosome two identical copies joined together, called sister chromatids.
The Cell Cycle & Mitosis
After that copying, each chromosome consists of two identical halves called sister chromatids, joined together at a pinched-in point.
Mitosis & the Cell Cycle