The cell membrane is made up of a phospholipids that are arranged into two layers which are called lipid bilayer.
Stem cell research has and can lead to medical cures.
D. And, I need to fill in all the 20 letters so I'm gonna ramble
Metaphase is the stage in which the "crossing over" occurs.
As we know chromosomes carry genetic information. This crossing over process happens in eukaryotic cells and occurs during the mitosis phases of cell division.
Hopefully this helped.
