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Match the description with the correct chromosomal structure. 12 Match the description with the correct chromosomal structure. 7.69 points A zigzag of nucleosomes visible in the electron microscope Protein-DNA complex that makes up eukaryotic chromosomes Individual proteins that DNA is wrapped around 146-147 base pairs of DNA wrapped around 8 proteins Highly compacted regions of chromosomes eBook Print Chromatin Histone Nucleosome 30-nm fiber Heterochromatin Roforences
Match the description with the correct chromosomal structure. 12 Match the description with the correct chromosomal structure. 7.69 points A zigzag of nucleosomes visible in the electron microscope Protein-DNA complex that makes up eukaryotic chromosomes Individual proteins that DNA is wrapped around 146-147 base pairs of DNA wrapped around 8 proteins Highly compacted regions of chromosomes eBook Print Chromatin Histone Nucleosome 30-nm fiber Heterochromatin Roforences
Thechromosomestructure changes as thecell cycle occur. Thechromatinis the lax stateof the DNA molecule during the interphase. As condensation begins, DNA associates withhistonesand composes thenucleosomes. In a higher condensation degree, several organized and associated nucleosomes compose thefibers. Finally,heterochromatinis the most condensed state of DNA.What is the chromosomal structure?In eukaryotes, the completechromosomeis composed of only one lineal and extremely long DNI molecule.DNA is intimately associated with two types of proteins:histonesstructural proteins and non-histone proteins, which mediate different functions of DNA.DNI associated withhistonesis calledchromatin. Histones are responsible for packaging DNI molecules, and the fundamental packaging unit is known as thenucleosome.As chromatin must be condensed, nucleosomesgenerate regular structures between themselves forming achromatinic fiberin which DNA is very condensed.A superior level of condensation is the structural ringlet-shaped domain. At this level, achromatin fiberis folded, and a protein is responsible for keeping joined the two regions of DNI that form the ringlet.The next condensation level is therolling of the ring-shaped domain composing thechromosome. At the highest condensation point, the molecule is known asheterochromatin.In the interphase, before cellular division,chromatinis in a diffuse, lax,uncondensed state. Whencellular division is about to happen, chromatin begins to condensate. At the beginning of the prophase, DNI is condensed in a well-definedchromosomeformed by two sister chromatids.You will find the complete image in the attached files.You can elarn more about thechromosomal structureatbrainly.com/question/28790805brainly.com/question/19327528brainly.com/question/16681455#SPJ1...