Is chromatin the most condensed form of DNA?
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
What is the difference between DNA and chromatin?
The DNA is packaged by special proteins called histones to form chromatin. The chromatin further condenses to form chromosomes.
|Difference between Chromosomes and Chromatin|
|Composed of nucleosomes||They are condensed chromatin fibers|
Is chromosome or chromatin more condensed?
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material between …
Is the nucleosome the highest level of structure most condensed form of DNA?
Chromosomes seen in metaphase of mitosis are the ‘highest order’, most condensed form of chromatin. The 10 nm filament of nucleosome ‘beads-on-a-string’ remaining after a low salt extraction can be seen in an electron microscope as shown below. … DNA extracted from the nucleosomes was about 147 base pairs long.
How is chromatin condensed into chromosomes?
Prophase: During prophase of mitosis, chromatin fibers become coiled into chromosomes. Each replicated chromosome consists of two chromatids joined at a centromere. Metaphase: During metaphase, the chromatin becomes extremely condensed. … Each cell has the same number of chromosomes.
Is DNA a chromatin?
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. … Each nucleosome is composed of DNA wrapped around eight proteins called histones.
How long is a DNA molecule?
Length of human DNA
|The World Book Encyclopedia . Chicago, World Book, 1999.||On the average, a single human chromosome consists of DNA molecule that is about 2 inches long.||2 , 3 m|
What is the main difference between chromatin and chromosome?
Chromatin is a complex formed by histones packaging the DNA double helix. Chromosomes are structures of proteins and nucleic acids found in the living cells and carry genetic material. Chromatin is composed of nucleosomes. Chromosomes are composed of condensed chromatin fibers.
DNA is packaged into tightly wound structures called chromosomes. … Each long string of DNA winds around structural protein spools called ‘histones’ to form a material called ‘chromatin’. The chromatin further loops and coils to form the tightly condensed chromosome structure.
What is the relationship between DNA and chromosomes?
The chromosomes serve as the structure that holds the DNA. The DNA acts as a complete set of instructions that tells our bodies how to develop. Storing more data than any computer, each chromosome contains all the information needed to give you a base for your physical (and emotional) characteristics.
What is DNA made of?
DNA is a linear molecule composed of four types of smaller chemical molecules called nucleotide bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The order of these bases is called the DNA sequence.