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Meiosis I: Anaphase

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.

Pair of homologous chromosomes <p>Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.</p>

Pair of homologous chromosomes

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.

Sister chromatids <p>Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.</p>

Sister chromatids

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.

Mitotic spindle <p>Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.</p>

Mitotic spindle

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.

Centrosomes <p>Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.</p>

Centrosomes

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.

Centromere <p>Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.</p>

Centromere

Anaphase begins as chiasmata break, allowing homologous chromosomes to separate.  Unlike mitosis, sister chromatids remain attached by cohesive proteins at their centromeres, and their kinetochores function together.  Anaphase ends with the segregation of one duplicated chromosome of each homologous pair to each spindle pole.