To fit such a long molecule within the tiny space ... Histones carry a slight positive charge, and DNA carries a slight negative charge. Since opposite charges attract, the DNA is pulled in ...

This means that a small DNA molecule will travel a greater distance ... the gel has a positive charge and the other end has a negative charge. Because DNA and RNA are negatively charged molecules ...

After one DNA molecule was trapped on the surface treated by APTES, the DNA molecule was stretched by pressure flow and ...

These bases are the rungs of the DNA ladder. (It takes two bases to form a rung -- one for each side of the ladder.) A sugar molecule, a base, and a phosphate molecule group together to make up a ...

DNA is a complex molecule that consists of two strands coiled around each other to form a double helix structure. Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding ...