Chromatin
The form DNA takes when it is in long strands prior to coiling is called chromatin. Chromatin consists of DNA wrapped around proteins called histones, and it is the uncoiled and extended form of DNA that allows for gene expression and replication.
In a cell, the tangles of long strands of DNA form the
In a cell, the tangles of long strands of DNA form the
Chromosomes are made up of DNA. DNA wraps around proteins called histones to form structures called nucleosomes, which then coil and condense to create chromosomes. Each chromosome contains a single, long DNA molecule.
a double helix
DNA wraps around proteins called histones to form chromosomes.
The nucleus of the cell is filled with DNA in the form of chromatin.
DNA is shaped like a double helix. It is stored in cells in the form of chromosomes, which are long strands of DNA wrapped around proteins called histones. These chromosomes are organized in the cell's nucleus.
a chromosome
The two long chains in DNA are called nucleotide strands. These strands are made up of smaller units called nucleotides, which consist of a sugar molecule, a phosphate group, and a nitrogenous base. The nucleotide strands are complementary and form a double helix structure.
It is called DNA supercoiling. This coiling helps to compact the long strands of DNA into the small space inside a cell.
DNA is a polymer