A cell line usually refers to an immortal culture of cells derived from a specific tussue. Immortal means that they do not die after a certain number of divisions, like 'normal' cells would. Still, there are finite- and continous cell lines. These cells can be of human origin (e.g. MCF7 cells), simian (COS), rodent (CHO cells), and many more. They are derived from many different tissues, like epithelial and neuronal, and can find their origins in organs such as kidneys, ovaria, etc. Researchers keep cell lines in a media that contains nutrients like sugars, proteins and anti biotics and they are usually kept at a temperature of 37o C in an atmosphere of humidified air with 5% CO2. Typical cell lines such as aforementioned cover a petri dish (92 mm across) from a density of 5% to 100% in three to four days under optimal conditions. Cell lines often replace laboratory animals and can be used for a number of different kinds of research.
Examples: yeast cells are in use to produce human recombinant insulin for example, so that diabetics don't have to rely on bovine insuline as that was the only available insuline for years. E.coli DH5a cells are frequently used to amplify amounts of DNA because of their rapid rate of cell division and low requirements to the environment they are kept and grown in. Mammalian cell lines can be used for anything from hosting and producing amounts of viral vectors for research, to characterisation of induction of gene expression by free radicals for instance. Cell lines are also frequently transfected with foreign DNA in order to investigate function of genes and their proteins.
I belive you mean the NIH 3T3 cell line which is the mouse embryonic fibroblast cell line, capable of differentiating into multiple cell types - adipocytes, myocytes or chondrocytes.
in digs.the longer line(in height) represents the positive terminal.
In Metaphase the chromatids line up at the equator/midplane of the cell.
They line up during metaphase of mitosis and meiosis
Chromosomes line up in the middle of the cell during meiosis.
line line cell
I belive you mean the NIH 3T3 cell line which is the mouse embryonic fibroblast cell line, capable of differentiating into multiple cell types - adipocytes, myocytes or chondrocytes.
A cell wall protects the Animal Cell.
the cell is in the stage of metaphase.
in digs.the longer line(in height) represents the positive terminal.
Chromatids line up during the metaphase of the cell cycle.
Chromatids line up during the metaphase of the cell cycle.
Press Alt+Enter to add another line within a sincle cell. Type your first line, then press Alt+Enter to move to the second line. In the formula window you will see only the first line unless you use the up and down arrow keys. In the cell you will see both lines. If your lines do not wrap and show up in the cell, format the cell with Cell Wrap turned on.
a stem cell line is a group of stem cells that has the ability to produce one specific type of cell. for example, one stem cell line could have the ability to produce a kidney, while another line could produce a liver.
You do not need any land line at all in order to own and use a cell phone.
The chromosomes line up on what is called the metaphase plate. This is an imaginary line that splits the cell in two.
The thin, outer line surrounding the cell. It helps bring items in and out of the cell