In anaphase-1, homologous chromosomes separate. Chromosomes run in opposite poles. Polar movement of chromosomes occurs due to contraction of chromosome bases and elongation of stem bodies. This is called anaphagic movement. During polar movement, the centromere is the leader and the armature is the follower. When the chromosomes reach the poles, they look like the letters V, L, J or I. As undivided complete chromosomes of bivalents reach the poles, the chromosome number becomes half of the chromosome number of the maternal cell. Siddique Publications