eukaryote
an organism having eukaryotic cells, i.e., those with a true nucleus
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
Eukaryote
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Eukaryote
(Science: cell biology) organism whose cells have chromosomes with nucleosomal structure and separated from the cytoplasm by a two membrance nuclear envelope and compartmentalisation of a function in distinct cytoplasmic organelles.
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Definition of eukaryote :
An organism having eukaryotic cells with a membrane bound nucleus and organelles.
EUKARYOTES - CELLS WITH PARTS
This is the place to learn about cells with a nucleus and all sorts of organelles. Eukaryotes are what you think of when you think of a classic "cell.
Eukaryotes
Basic structure
The basic eukaryotic cell contains the following:
plasma membrane
glycocalyx (components external to the plasma membrane)
cytoplasm (semifluid) ...
There are several methods used by eukaryotes.
Altering the rate of transcription of the gene. This is the most important and widely-used strategy and the one we shall examine here.
Eukaryotes
The Kingdoms Protista, Fungi, Plants and Animals are the other five kingdoms and they are composed solely of eukaryotic organisms.
eukaryote -- n. An organism whose cells have cytoskeletons for support and their DNA contained in a nucleus, separated from the other contents of the cell; e.g., protists, plants, animals, and fungi; eukaryotic- adj.
eukaryote A type of cell found in many organisms including single-celled protists and multicellular fungi, plants, and animals; characterized by a membrane-bounded nucleus and other membraneous organelles; an organism composed of such cells.
eukaryote
[Gk. eu, good + karyon, nut, kernel]
An organism whose cells contain membraine-bound organelles and whose DNA is enclosed in a cell nucleus and is associated with proteins.
eumetazoa ...
Eukaryote A class of organisms (which may be single or multicellular) in which the genetic material is contained within a nucleus. There are other specialised structures too which are unique to eukaryotes. See prokaryotes and archaebacteria.
Eukaryote. An organism whose cells possess a nucleus and other membrane-bound vesicles, including all members of the protist, fungi, plant and animal kingdoms; and excluding viruses, bacteria, and blue-green algae. See Prokaryote.
Eukaryote organisms whose cells have a true nucleus
(eu = good‚ well‚ true; karyon = nut‚ kernel‚ nucleus)
Euryhaline having a wide range of salt concentration tolerance ...
Eukaryote
A cell or organism with membrane-bound, structurally discrete nucleus and other well-developed subcellular compartments. Eukaryotes include all organisms except viruses, bacteria, and bluegreen algae.
eukaryote, nucleus, nucleolus, endoplasmic reticulum, centriole, Golgi, cytoskeleton, mitochondria, vacuole, cell theory
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Eukaryotes have 9 doublets (pairs) of microtubules arranged in a circle around 2 central microtubules. This 9 + 2 pattern is characteristic of all eukaryotic cilia and flagella but not those of prokaryotes.
eukaryote Having a true nucleus; a cell that has membranous organelles, most notably the nucleus.
eukaryotic cell A cell containing a membrane-bounded nucleus and membrane-bounded organelles.Compare prokaryotic cell.
In eukaryotes, a gene often contains altering sequences known as exons (expressed codons) and introns (interrupting codons).
In eukaryotes, the rRNA in ribosomes is organized into four strands, and in prokaryotes, three strands. Eukaryote ribosomes are produced and assembled in the nucleolus.
Cap: All eukaryotes have at the 5' end of their messages a structure called a "cap", consisting of a 7-methylguanosine in 5'-5' triphosphate linkage with the first nucleotide of the mRNA.
intron In eukaryotes, bases of a gene transcribed but later excised from the mRNA prior to exporting from the nucleus and subsequent translation of the message into a polypeptide. PICTURE ...
Cell structure: eukaryotes, unicellular and multicellular
Cell wall: (sometimes) polysaccharide
Nutrition: autotrophic, heterotrophic
Placed in this category by exclusion / cannot be placed in any other kingdom ...
Chromosomes exist in pairs in higher eukaryotes. (See Chromosome walking.) Chromosome walking. Working from a flanking DNA marker, overlapping clones are successively identified that span a chromosomal region of interest. (See Chromosome.) Cistron.
Artificial chromosomeA vector constructed from host cell chromosomal elements such as origin of replication, telomeres and centromere (in eukaryotes).
Alternative splicing is an important regulatory mechanism in higher eukaryotes1. By recent estimates, at least 30% of human genes are spliced alternatively (Mironov, A.A. and Gelfand, M.S. Proc. 1st Int. Conf.
Eukaryotes - advanced cell type with a nuclear membrane surrounding genetic material and numerous membrane-bound organelles dispersed in a complex cellular structure ...
These are: the prokaryotes ("ordinary" bacteria), archaebacteria (thermophilic, methanogenic and halophilic bacteria) and eukaryotes.
Recent evidence strongly suggests that lateral gene transfer involving eukaryotes may be more prevalent than once thought. In some DNA sequences, bacterial or archaeal sequences cluster in clades that are otherwise strictly eukaryotic.
DNA usually occurs as linear chromosomes in eukaryotes, and circular chromosomes in prokaryotes. A chromosome is an organized structure consisting of DNA and histones.
When we divide the organisms that live on this planet, we make a distinction between those that have a nucleus, that are called eukaryotes, and those that don't have a nuclei, which we call prokaryotes.
The cellular organelle in eukaryotes that contains the genetic material.
Related Terms:
Eukaryote
Cell or organism with membrane-bound, structurally discrete nucleus and other well-developed subcellular compartments.
Double stranded RNA (dsRNA): In eukaryotes, it is an accidental byproduct of transcriptional process.
Histone
A basic protein from eukaryotes (or Archae) which binds to DNA, forming nucleosomes, and packaging the DNA into chromatin.
Histone-like proteins
Proteins from bacteria which bind to DNA, and compact the DNA.
A phylogenetic tree of all living things, based on rRNA gene data, showing the separation of the three domains bacteria, archaea, and eukaryotes as described initially by Carl Woese.
- A nuclear organelle of eukaryotes, associated with the chromosomal site of genes coding for rRNA
Nucleosome
- The basic structural unit of eukaryotic chromosome, composed of an octomer and DNA ...
AMP-dependent protein kinase A protein kinase, conserved among eukaryotes, that is activated on binding of AMP and inhibited by ATP; consequently, it functions as a cellular fuel gauge, ...
As with eukaryotes, the membrane controls the permeability of the cell and is the major site of energy metabolism.
1. The membrane bound organelle containing the genome of eukaryotes organized into chromosomes.
2. The center portion of an atom which contains the protons and neutrons.
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 ...
The pre-tRNA of prokaryotes and eukaryotes has extra nucleotides at the 5' and 3' extremities and in some eukaryotic pre-tRNAs introns are also present.
gonidia - reproductive cells of colonial photosynthetic eukaryotes such as Volvox.
granular/granule cell - most abundant neuron type in the cerebellar cortex of the vertebrate brain.
GENE - Generally speaking, the genomic nucleotide sequence that codes for a particular polypeptide chain, including relevant transcriptional control sequences and introns (if a eukaryote).
Nucleus
The term introduced by Brown (1833) for the more or less spherical structure which occures in cells and stains deeply with basic dyes. The cellular organelle in eukaryotes that contains the genetic material.
 See also: Eukaryotes, Organ, Cells, Cell, Protein
  
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