Question

Synaptinemal complex begins to dissolve except in the region of crossing over. Therefore, chromosomes separate and chromatids become distinct at most of the places. As it appears to have four chromatids now, it is called a ____ _____. The synaptinemal attachment points between the homologous chromosomes called _________.

Answer 1

The synaptonemal complex is a lattice of proteins that forms between homologous chromosomes during prophase I of meiosis. It helps to hold the chromosomes together and facilitates the exchange of genetic material between non-sister chromatids, a process called crossing over. The synaptonemal complex begins to dissolve as meiosis progresses, except in the region of crossing over.

Step-by-step explanation:

The synaptonemal complex is a lattice of proteins that forms between homologous chromosomes during prophase I of meiosis. It helps to hold the chromosomes together and facilitates the exchange of genetic material between non-sister chromatids, a process called crossing over. The synaptonemal complex begins to dissolve as meiosis progresses, except in the region of crossing over. This leads to the separation of the chromosomes and the formation of distinct chromatids, which are called tetrads.