Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Disjunction

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search

Definition

noun

The normal separation or moving apart of chromosomes toward opposite poles of the cell during cell division.


Supplement

Disjunction normally occurs during the anaphase of mitosis and meiosis (I and II).

During the anaphase of mitosis, sister chromatids separate and move towards opposite poles of the cell.

In meiosis, disjunction happens when homologous chromosomes move apart toward the opposite poles of the cell in anaphase I. Disjunction again occurs when sister chromatids separate and move away from each other during anaphase II.


Related term: disjunction mutant.

Compare: nondisjunction.
See also: anaphase.