In prophase 1:
Chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears.
In metaphase 1:
The pairs of chromosomes (bivalents) become arranged on the metaphase plate and are attached to the now fully formed meiotic spindle. The centrioles are at opposite poles of the cell.
Answer: I'm not exactly sure what your asking but here's my answer: Homologous chromosomes are separated during anaphase of meiosis I.
Conduction and convection are means of transferring heat, the important difference is the medium through which the heat travels. Conduction occurs when heat is transferred through solid objects, like a bar.
<span>The job of these envelope extensions is to increase the bacteria's surface area so they can absorb more nutrients and grow. This is especially important in an adverse environment that lacks a lot of resources.</span>
