centromere


cen·tro·mere

noun \ˈsen-trə-ˌmir\

Definition of CENTROMERE

:  the point or region on a chromosome to which the spindle attaches during mitosis and meiosis
cen·tro·mer·ic \ˌsen-trə-ˈmir-ik, -ˈmer-\ adjective

Origin of CENTROMERE

International Scientific Vocabulary
First Known Use: circa 1925

cen·tro·mere

noun \ˈsen-trə-ˌmi(ə)r\   (Medical Dictionary)

Medical Definition of CENTROMERE

: the point or region on a chromosome to which the spindle attaches during mitosis and meiosis—called also kinetochore
cen·tro·mer·ic \ˌsen-trə-ˈmi(ə)r-ik, -ˈmer-\ adjective

Illustration of CENTROMERE

centromere

noun    (Concise Encyclopedia)

Structure in a chromosome that holds together the two chromatids. It is the point of attachment to the structure that pulls the chromatids to opposite ends of the cell during cell division (see mitosis). During the middle stage of mitosis, the centromere duplicates and the chromatid pair separates, each chromatid becoming a separate chromosome. Thus, when the cell divides, both daughter cells have complete sets of chromosomes.

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