The phrase "a layer of cell" is not correct in standard written English.
It should be "a layer of cells" to refer to multiple cells in a biological context.
Example: "The tissue is composed of a layer of cells that perform specific functions."
Alternatives: "a layer of tissue" or "a layer of cellular structure."
The answer lies in a layer of cells in the outermost thickness of the mouse's somatosensory cortex.
People with the dry type suffer from a progressive thinning of the retinal pigment epithelium, a layer of cells that support and nourish the light-sensing photoreceptors.
"After a month or two, the whole inner surface of the graft would hopefully be lined with a layer of cells," Elbert says.
Wood is produced by the vascular cambium, a layer of cells whose job it is to divide off cells for new conducting tissues.
Hillman's team has found that a layer of cells is capable of propagating signals important to increasing blood flow in the brain.
That work involved in effect turning the clock back in a layer of cells on the outside of the heart, called the epicardium, making adult cells think they were embryos again and thereby restarting their ability to repair.
The outer surface of each ovary is covered by a layer of cells (germinal epithelium); these surround the immature egg cells, which are present in the ovaries from the time of birth.
In humans and many other animal species, brachyury is essential for embryos to develop, marking a layer of cells that will become the skeleton and muscles.
endodermis -- Literally "inner skin", this is a layer of cells which surrounds the central core of vascular tissue, and which helps to regulate the flow of water and dissolved substances.
Yet little is understood about how the virus crosses the maternal-fetal barrier, a layer of cells that serves as a filter to protect the fetus from harmful substances.
