2nd October 2019


What is DNA packing?

The process starts when DNA is wrapped around special protein molecules called histones. The combined loop of DNA and protein is called a nucleosome. Next the nucleosomes are packaged into a thread, which is sometimes described as "beads on a string". The end result is a fiber known as chromatin.

Hereof, what is it called when DNA is uncoiled?

Between cell divisions, the DNA in chromosomes is more loosely coiled and forms long thin strands called chromatin. DNA is in this uncoiled form during the majority of the cell cycle, making the DNA available to the proteins involved in DNA replication and transcription.

How is DNA coiled into chromosomes?

Double-stranded DNA loops around 8 histones twice, forming the nucleosome, which is the building block of chromatin packaging. DNA can be further packaged by forming coils of nucleosomes, called chromatin fibers. These fibers are condensed into chromosomes during mitosis, or the process of cell division.

How is the DNA of a nucleus stored?

To store this important material, DNA molecules are tightly packed around proteins called histones to make structures called chromosomes. The DNA that contains your genes is stored in your cells in a structure called the nucleus.
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