Genetics Chapter 2 - Stages of Meiosis

In what phase does synapsis and crossing over occur?

Prophase I

Homologous chromosomes recognize each other and begin to align themselves along their entire length during what stage of meiosis?

Prophase I

What phase is the spindle apparatus complete, and the chromatids are attached via kinetochore microtubules?

Prometaphase I

Bivalents (also called tetrads) are aligned along the center of the cell in ______ of meiosis

Metaphase I

The separation and migration of the two pairs of sister chromatids within a bivalent from each other occurs in which stage of meiosis?

Anaphase I

1) Sister chromatids reach their respective poles

2) Decondensation occurs in most species
3) In many species, the nuclear membrane re-forms to produce two separate nuclei

Telophase I

In meiosis, when do replicated chromosomes condense?

Leptotene

In meiosis, when does synapsis begin?

Zygotene

In meiosis, when do bivalent formation and crossing over occur?

Pachytene

In meiosis, when does the synaptonemal complex dissociate?

Diplotene

In meiosis, when does the nuclear break apart?

Diakinesis