In at least 5 sentences, describe the technique of x-ray crystallography.

The technique of X-ray crystallography is used for finding the atomic (gives energy to atoms and then to molecules) and molecular structure (The arrangement of chemical bonds between atoms in a molecule). The crystals will then cause the X-ray to beam a pattern onto a film structure. Then finally you're left with a diffraction pattern (passing through a narrow aperture (film) or across an edge, typically accompanied by interference between the wave forms produced).

i think the answer is

mass

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.