http://cyberbridge.mcb.harvard.edu/mitosis_6.html WebMetaphase. During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids (see Figure below).The sister chromatids line up at the equator, or center, of the cell. This is also known as the metaphase plate. The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides.

2.35: Mitosis and Cytokinesis - Biology LibreTexts

WebA bivalent. A bivalent is one pair of chromosomes (sister chromatids) in a tetrad. A tetrad is the association of a pair of homologous chromosomes (4 sister chromatids) physically … cs-studio download

Bivalents align at metaphase plate? - Answers

Web• Metaphase 1 • Anaphase 1 • Telophase Phases of Meiosis 1 Prophase 1 • 5 substages • Leptotene • Zygotene • Pachytene • Diplotene • Diakinesis Metaphase 1 • The bivalents align at the equatorial plate and microtubules from the opposite poles attach to the pairs of homologous chromosomes. Web2.Metaphase I: Bivalent chromosomes align themselves on the equatorial plate. The distribution of bivalent chromosomes is at random. The distribution of bivalent chromosomes is at random. The microtubules of spindle fibres from opposite poles are attached to the centromere of the chromosome facing towards it. WebAt the stage of metaphase-I it does not matter which homologous chromosomes faces which pole, therefore, all possible combinations of chromes will occur in gametes Bivalents can be randomly aligned along the metaphase plate in a variety of ways-Humans have 23 chromosomes per set o The possible number of different random alignments equals 2^n ... csst tubing fittings