What is chromatin? How does the DNA of prokaryotic cells differ from the DNA of eukaryotic cells? How does chromatin interact with other parts of the cell? What does chromatin look like in a plant cell? What is the DNA structure of eukaryotic cells? What is a major difference bet...
What Is Chromosome?- A Chromosome is a long DNA double helix wrapped around histone proteins into a condensed 3-dimensional structure. The process of wrapping a DNA double helix can be described as: The first step is wrapping the DNA double helix sections around histone proteins to form struct...
The structure ... M.J. Saunders,E Yeh,M Grunstein,... - 《Molecular & Cellular Biology》 被引量: 125发表: 1990年 Intra- and inter-nucleosome interactions of the core histone tail domains in higher-order chromatin structure Eukaryotic chromatin is a hierarchical collection of nucleoprotein ...
Explain how the structure of each tissue is linked to its function in the human body. What is a myofiber? What are the similarities and differences between mitosis and meiosis? What molecule can get through the cell? Explain the similarities and differences among the three phyla of non vascular...
they code. The structure of Each DNA molecule is a long double helix that resembles a spiral staircase and contains millions of steps. These steps of the staircase have pairs of four types of molecules called bases (nucleotides). These bases are paired as follows- the base...
As noted, chromosomes are simply divisions of the substance into which DNA is packed within cells, called chromatin. Chromatin consists of DNA and proteins that serve to compress and relax the overall structure of chromosomes depending on the cell's state of division. Most of these proteins are...
chromatin, DNA is tightly condensed by being wrapped around nuclear proteins calledhistones. This repeating DNA-histonecomplex, which consists of 146 base pairs of double-stranded DNA wrapped around eight histone proteins, is called anucleosome. The repeating nucleosomal units are commonly referred to ...
imprintmustbeerasedandresetinthegermcells Failureatanyofthesestepswillresultinalossofimprinting 3possibleimprintmarkshavebeenproposed: –DNAmethylation –Alterationstochromatinstructure –Asynchronousreplicationtiming DNAmethylationisheritableanderasableepigeneticfeature.Itssuggestedinvolvementstrengthenedby identificationof...
a冷漠是遮掩脆弱的最佳表情 Indifferent is covers up the frail best expression[translate] aAnd I pretend pure, you do not deserve And I pretend pure, you do not deserve[translate] a染色质水平上的调控 In chromatin level regulation[translate] ...
Chromatids are produced fromchromatinfibers during both meiosis and mitosis. Chromatin is composed ofDNAand skeletalproteinsand is called a nucleosome when wrapped around these proteins in sequence. Even more tightly wound nucleosomes are called chromatin fibers. Chromatin condenses DNA enough to fit w...