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chromatid
This term describes a specific structural state of a chromosome after DNA replication. It refers to the individual strands that remain physically tethered, creating the characteristic X-shape seen during cell division. The term is strictly technical and used almost exclusively within the fields of genetics and cytology.
Because it describes a physical biological entity, it follows standard countability rules. It is distinct from the term chromosome, which refers to the entire genetic package, whereas a chromatid is specifically one of the identical copies within that package.
Meanings
One of the two identical halves of a replicated chromosome that are joined together by a centromere.
Examples
This is a chromatid.
This is a chromatid.
A chromatid is small.
A chromatid is small.
We studied the sister chromatid in biology class.
The doctor explained how a chromatid functions.
The microscope revealed a single chromatid clearly.
The microscope revealed a single chromatid clearly.
The separation of each sister chromatid ensures genetic stability.
Researchers analyzed the chromatid structure to identify mutations.
Historical textbooks once simplified the role of the chromatid.
Historical textbooks once simplified the role of the chromatid.