Meaning & use
centromere
The region of a chromosome where the two sister chromatids join and spindle fibers attach during cell division.
See it in a sentence
The centromere ensures that chromosomes separate evenly when a cell divides.
Under the microscope, the centromere appeared as a pinched, narrow section of the chromosome.
A note on using this word
The centromere's position on a chromosome, whether central or off-center, helps scientists classify chromosome types.
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