is the repeating unit of the agarose polymer
Agar is a heteropolysaccharide composed of agarose and agaropectin. Agarose makes up the majority of agar and consists of repeating units of agarobiose, while agaropectin is a minor component with a more complex structure.
Agarose is a polysaccharide made up of repeating units of agarobiose, a disaccharide composed of D-galactose and 3,6-anhydro-L-galactose. It is extracted from seaweed and is commonly used in gel electrophoresis to separate DNA fragments based on size.