英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   







請輸入英文單字,中文詞皆可:

chromatin    
n. 核染質,染色質

核染質,染色質

chromatin
n 1: the readily stainable substance of a cell nucleus
consisting of DNA and RNA and various proteins; during
mitotic division it condenses into chromosomes [synonym:
{chromatin}, {chromatin granule}]

Chromatin \Chro"ma*tin\, n. (Biol.)
The deeply staining substance of the nucleus and chromosomes
of eukaryotic cells, composed of DNA and basic proteins (such
as histones), the DNA of which comprises the predominant
physical basis of inheritance. It was, at the beginning of
the 20th century, supposed to be the same substance as was
then termed {idioplasm} or {germ plasm}. In most eukaryotic
cells, there is also DNA in certain plasmids, such as
mitochondria, or (in plant cells) chloroplasts; but with the
exception of these cytoplasmic genetic factors, the nuclear
DNA of the chromatin is believed to contain all the genetic
information required to code for the development of an adult
organism. In the interphase nucleus the chromosomes are
dispersed, but during cell division or meiosis they are
condensed into the individually recognizable chromosomes. The
set of chromosomes, or a photographic representation of the
full set of chromosomes of a cell (often ordered for
presentation) is called a karyotype.
[Webster 1913 Suppl.]


Chromatin \Chro"ma*tin\, n. [Gr. ?, ?, color.]
1. (Biol.) Tissue which is capable of being stained by dyes.
[archaic]
[1913 Webster]

請選擇你想看的字典辭典:
單詞字典翻譯
Chromatin查看 Chromatin 在Google字典中的解釋Google英翻中〔查看〕
Chromatin查看 Chromatin 在Yahoo字典中的解釋Yahoo英翻中〔查看〕





安裝中文字典英文字典查詢工具!


中文字典英文字典工具:
選擇顏色:
輸入中英文單字

































































英文字典中文字典相關資料:
  • Chromatin - Wikipedia
    Chromatin packages long DNA molecules into compact structures while controlling access to genetic information for processes such as transcription, DNA replication, and DNA repair
  • Chromatin - National Human Genome Research Institute
    Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms Many of the proteins — namely, histones — package the massive amount of DNA in a genome into a highly compact form that can fit in the cell nucleus
  • What Is Chromatin and What Does It Do? - Biology Insights
    Chromatin is the substance within a cell’s nucleus that consists of DNA and proteins Its primary role is to efficiently package the vast amount of a cell’s DNA into the small confines of the nucleus
  • How chromatin movement helps control gene expression
    For the first time, MIT researchers measured the dynamics of chromatin movement over an extended period of time, ranging from the scale of microseconds to hours The findings offer insight into how gene expression is regulated, as well as how chromatin segments come together for other processes such as DNA repair
  • Chromatin - Latest research and news | Nature
    Chromatin organization strengthens DNA for mechanically stressful processes like mitosis, helps protect DNA from damage and is important in the control of gene expression and DNA replication
  • Chromatin Structure - an overview | ScienceDirect Topics
    Chromatin structure refers to the organization of DNA in eukaryotic cells into repeating units called nucleosomes, which consist of DNA wrapped around histone proteins
  • What is Chromatins Structure and Function? - ThoughtCo
    Chromatin is a mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division Chromatin is located in the nucleus of our cells





中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典