terms pre-cell (precell), proto-cell (protocell), etc. are frequently used to designate hypothetical ancestral entities precursing complete cells. The...
9 KB (941 words) - 07:15, 11 April 2024
involving B cell receptors (BCR) on the surface of the cell. Positive selection occurs through antigen-independent signalling involving both the pre-BCR and...
32 KB (3,752 words) - 22:20, 13 July 2024
Cellularization (section The pre-cell theory)
theories to explain the evolution of cells, for instance in the pre-cell theory, dealing with the evolution of the first cells on this planet, and in the syncytial...
18 KB (1,935 words) - 16:21, 13 August 2024
Adipocyte (redirect from Adipose cell)
cells, are the cells that primarily compose adipose tissue, specialized in storing energy as fat. Adipocytes are derived from mesenchymal stem cells which...
22 KB (2,537 words) - 21:41, 27 June 2024
all cells come from pre-existing cells. Cells are the basic unit of structure in all living organisms and also the basic unit of reproduction. Cell theory...
26 KB (3,347 words) - 14:49, 19 August 2024
cells, that cells are the fundamental unit of structure and function in all living organisms, and that all cells come from pre-existing cells. Cells are...
60 KB (6,271 words) - 04:42, 20 August 2024
Protocell (redirect from Proto-cell)
to understand the process appears well within reach. A protocell is a pre-cell in abiogenesis, and was a contained system consisting of simple biologically...
64 KB (7,477 words) - 06:54, 3 June 2024
A prison cell (also known as a jail cell) is a small room in a prison or police station where a prisoner is held. Cells greatly vary by their furnishings...
9 KB (1,050 words) - 19:44, 16 April 2024
Last universal common ancestor (redirect from Primordial cell)
hypothesized common ancestral cell from which the three domains of life, the Bacteria, the Archaea, and the Eukarya originated. The cell had a lipid bilayer; it...
63 KB (6,588 words) - 11:22, 11 August 2024
risk of developing pre-eclampsia. In pre-eclampsia, abnormal expression of chromosome 19 microRNA cluster (C19MC) in placental cell lines reduces extravillus...
94 KB (10,074 words) - 19:25, 19 August 2024
planet, Kandler presented his pre-cell theory, suggesting that the three domains of life did not emerge from an ancestral cell, e.g. the last universal common...
55 KB (5,647 words) - 05:35, 10 June 2024
of pre-cells, i.e. evolving entities of primordial life with different characteristics and widespread horizontal gene transfer. From this pre-cell population...
233 KB (22,600 words) - 08:29, 25 August 2024
A cytotoxic T cell (also known as TC, cytotoxic T lymphocyte, CTL, T-killer cell, cytolytic T cell, CD8+ T-cell or killer T cell) is a T lymphocyte (a...
31 KB (3,843 words) - 10:18, 12 August 2024
Embryonic stem cells (ESCs) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human...
73 KB (8,680 words) - 00:23, 26 April 2024
Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders typically inherited. The most common type is...
141 KB (15,222 words) - 11:55, 12 August 2024
Formation of the pre-RC is required for DNA replication to occur. Complete and faithful replication of the genome ensures that each daughter cell will carry...
15 KB (1,928 words) - 17:24, 8 January 2024
from the division of pre-existing cells. Viruses are not considered in cell biology – they lack the characteristics of a living cell and instead are studied...
41 KB (5,249 words) - 22:04, 17 August 2024
Cell potency is a cell's ability to differentiate into other cell types. The more cell types a cell can differentiate into, the greater its potency. Potency...
30 KB (3,291 words) - 18:55, 18 August 2024
Pre-B-cell leukemia homeobox (PBX) refers to a family of transcription factors. Types include: PBX1 PBX2 PBX3 PBX4 Pre-B cell "PBX1 PBX homeobox 1 [Homo...
917 bytes (61 words) - 16:03, 28 October 2022
the pre-TCR at the cell surface, they are independent of ligand binding to the pre-TCR. If the chains successfully pair a pre-TCR forms, and the cell downregulates...
71 KB (9,026 words) - 12:33, 26 April 2024
Zygote (redirect from Fertilized egg cell)
has also been referred to as the pre-embryo in legal discourses including relevance to the use of embryonic stem cells. In the US the National Institutes...
9 KB (872 words) - 07:52, 28 June 2024
The cell cycle, or cell-division cycle, is the sequential series of events that take place in a cell that causes it to divide into two daughter cells. These...
77 KB (9,017 words) - 19:41, 20 August 2024
needed] Mature Th cells express the surface protein CD4 and are referred to as CD4+ T cells. CD4+ T cells are generally treated as having a pre-defined role...
54 KB (6,597 words) - 14:51, 21 July 2024
RNA world (redirect from Pre-RNA world)
Transitions in Evolution RNA-based evolution Protocell or Pre-cell, the primordial version of a cell which confined RNA and later, DNA First universal common...
92 KB (10,692 words) - 14:18, 22 July 2024
Protein biosynthesis (section Sickle cell disease)
polymerases, in the nucleus of the cell. In eukaryotes, this mRNA is initially produced in a premature form (pre-mRNA) which undergoes post-transcriptional...
40 KB (4,342 words) - 18:58, 2 April 2024
cell nucleus (from Latin nucleus or nuculeus 'kernel, seed'; pl.: nuclei) is a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually...
87 KB (9,882 words) - 23:43, 24 August 2024
Cell–cell interaction refers to the direct interactions between cell surfaces that play a crucial role in the development and function of multicellular...
17 KB (2,221 words) - 04:19, 27 May 2024
Tom Clancy's Splinter Cell is a series of stealth action-adventure video games, the first of which was released in 2002, and their tie-in novels that were...
49 KB (4,837 words) - 21:33, 12 August 2024
lineages, and every currently living cell. Carbon chauvinism Hypothetical types of biochemistry Nanobe Plasmid Pre-cell Protocell "What is Non-Cellular Life...
12 KB (1,108 words) - 23:22, 11 July 2024
Primary transcript (redirect from Pre-mRNA)
a DNA template in the cell nucleus by transcription. Pre-mRNA comprises the bulk of heterogeneous nuclear RNA (hnRNA). Once pre-mRNA has been completely...
25 KB (3,184 words) - 12:37, 17 August 2024