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How do chromatin-remodeling complexes recognize the genes they should act on?
Chromatin-remodeling complexes recognize specific transcription factors bound to regulatory sequences of DNA.
What uncoiled dna like thread?
Chromatin is the uncoiled form of DNA that resembles a thread-like structure. It consists of DNA wrapped around proteins called histones, which help organize and compact the DNA into a condensed form. When DNA is uncoiled and in the form of chromatin, it allows for easier access and transcription of the genetic information stored in the DNA.
Why chromosomes are not seen inside the nucleus?
In cells that are actively making protien the chromatin can't be seen as easily because it isn't densely packed, but instead stretched out so that the process of transcription is easier.
Threadlike coils of chromosomes?
Chromatin-- =]
What is the description of a chromatin fiber?
A chromatin fiber is the point at which DNA in chromatin is higher then the nucleosome. Chromatin fibers occur when the linear array of the nucleosome fold into a tighter fiber.
Why does chromatin remodeling have to be the first step in gene activation?
Eukaryotic DNA can be highly packaged in condensed chromatin and inaccessible to transcription factors and RNA polymerase.
How do chromatin remodeling complexes recognize the genes they should act on?
Chromatin-remodeling complexes recognize specific transcription factors bound to regulatory sequences of DNA.
How do chromatin-remodeling complexes recognize the genes they should act on?
Chromatin-remodeling complexes recognize specific transcription factors bound to regulatory sequences of DNA.
How do DNA methylation and histone acetylation affect chromatin structure and the regulation of transcription?
When chromatin is tightly compacted and dense, it's called Heterochromatin. When chromatin is loosely packed, its called Euchromatin. Euchromatin is easily accessible to transcription enzymes, while herterochromatin makes transcription impossible because the enzymes cannot access the DNA. Therefore, a gene within heterochromatin cannot be expressed. Also, look up how histone modifications such as histone acetylation affect gene expression.
What has the author Gregory James Ide written?
Gregory James Ide has written: 'In vitro transcription in the yeast: Saccharomyces cerevisiae' -- subject(s): Chromatin, Yeast
What uncoiled dna like thread?
Chromatin is the uncoiled form of DNA that resembles a thread-like structure. It consists of DNA wrapped around proteins called histones, which help organize and compact the DNA into a condensed form. When DNA is uncoiled and in the form of chromatin, it allows for easier access and transcription of the genetic information stored in the DNA.
What does the chromatain do?
A chromatin is the material that makes up both mitotic and inter phase chromosomes; a complex of proteins and DNA strands that are loosely coiled such that translation and transcription can occur.
What has the author Joseph Guy Michel Guillemette written?
Joseph Guy Michel Guillemette has written: 'A study of the association between altered chromatin structure and transcription in the Alzheimer afflicted neocortex'
Why chromosomes are not seen inside the nucleus?
In cells that are actively making protien the chromatin can't be seen as easily because it isn't densely packed, but instead stretched out so that the process of transcription is easier.
What happens to the chromatin?
The structure of chromatin during interphase is optimized to allow easy access of transcription and DNA repair factors to the DNA while compacting the DNA into the nucleus. The structure varies depending on the access required to the DNA. Genes that require regular access by RNA polymerase require the looser structure provided by euchromatin
What structure is composed of DNA and protein?
chromatin / chromosones!
What does Chromatin condense of?
Chromatin can't "condense of" anything, chromatin can condense into Chromosomes.
