The 'short' Answer is 1.87 meters.
Actually it is quite True that the linear length of Dna contained in a human Cell nucleus - typically 3 to 4 micrometers in diameter - is 1.87 meters long!
"Folding" occurs in three phases - the first involves the winding of the Dna strand around histone proteins - next the strands of histone wound Dna are twisted into the 10 nm fiber. Then this 10 nm fiber is wound around itself into the 30 nm fiber: this is microscopically visualized as the Chromosome Strand(s).
Acetylation is the compacting of a DNA molecule, making it more compact and reduces its ability to be transcribed.
DNA needs to be coiled in the cell to fit into the small space of the nucleus and to regulate gene expression. The coiling of DNA helps to organize and compact the genetic material, allowing it to be efficiently stored and accessed for various cellular processes.
DNA
Chromosomes are packages of compact DNA found in the cell nucleus. They consist of long strands of DNA wrapped around proteins called histones, forming a structure that helps organize and protect the genetic material. Chromosomes are essential for cell division, gene expression, and inheritance of genetic traits.
Supercoiling of DNA helps to compact the long DNA molecule into a smaller space within the cell. This compact form makes it easier to fit inside the cell's nucleus and helps regulate gene expression by affecting the physical accessibility of the DNA. Supercoiling also plays a role in DNA replication and gene regulation.
It wraps the DNA around proteins, and then coils further forming a compact fiber.
It wraps around histones and coils into a fiber
It is called DNA supercoiling. This coiling helps to compact the long strands of DNA into the small space inside a cell.
because it goes through the inzome process.
DNA can compact itself through a process called DNA condensation, where it wraps around proteins called histones to form structures called nucleosomes. These nucleosomes then coil and fold into higher-order structures, ultimately leading to the highly compacted form known as chromatin. This compaction allows the long strands of DNA to fit within the nucleus of a cell.
Transcription is the process where genetic information from DNA is copied into a complementary RNA molecule. Chromatin refers to the complex of DNA and proteins in the nucleus of a cell, which packages and organizes the DNA into a compact structure.
Genes are composed of DNA. Chromosomes are composed of DNA and proteins. Genes are the sections of DNA which code for a functional product (such as a protein). Chromosomes are the compact, tightly-coiled form of DNA. These appear before the cell undergoes division/replication.