What are the steps of prophase 1?

Answer 1

1) leptotene (early chromatin condensation),

2) zygotene (localized condesations and chromomere becomes visible),

3) pachytene (chromatin condensation continues),

4) diplotene (homologs seem to repel one another, but held together at chiasmata. also now it can be seen that each homolog has 2 chromatids), and

5) diakenesis (shortening and thickening of the paired chromosomes, formation of the spindle fibers, disappearance of the nucleolus, and degeneration of the nuclear membrane)

Answer 2

The chromatin begins to coil and condense.Centrioles move to the opposite poles of the nucleus an a spindle forms in between them. As the spindle forms, the nuclear envelope breaks down and the nucleoli disappear.

Answer 3

During prophase I of meiosis, the steps include condensation of chromosomes, homologous chromosomes pair up in a process called synapsis, crossing over occurs where genetic material is exchanged between homologous chromosomes, and the nuclear envelope breaks down allowing the spindle fibers to attach to the chromosomes.

Answer 4

the chromosomes coil, the spindle forms, the homologus chromosomes pair to form a tetrad, and crossing over occurs

Answer 5

In prophase 1, the cell's chromosomes cross over exchanging DNA. We just finished learning about this in Biology class.

Answer 6

the chromosomes line up in rows