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Cells in sentence

1993 examples of Cells in a sentence

This is because, although each cell in our bodies contains the same set of genes, different mixes of genes get turned on and off in different cells.
Susana had engineered the fruit fly on the left so that just two out of the 200,000 cells in its brain expressed the light-activated pore.
You're familiar with these cells because they are the ones that frustrate you when you try to swat the fly.
We can incorporate such an element of adaptive intelligence into our model by assuming that the fly's brain contains not only an Actor, but a different group of cells, a "Critic," that provides a running commentary on the Actor's choices.
So we set out to identify the cells in the fly's brain that played the role of the Critic.
We thought if we could use our optical remote control to activate the cells of the Critic, we should be able, artificially, to nag the Actor into changing its policy.
So we bred flies whose brains were more or less randomly peppered with cells that were light addressable.
If the Critic was among the optically activated cells, the result of this intervention should be a change in policy.
Here's what happened in two instances: We're comparing two strains of flies, each of them having about 100 light-addressable cells in their brains, shown here in green on the left and on the right.
What's common among these groups of cells is that they all produce the neurotransmitter dopamine.
Optically activating these hundred or so cells into two strains of flies has dramatically different consequences.
Through many such experiments, we were able to narrow down the identity of the Critic to just 12 cells.
These 12 cells, as shown here in green, send the output to a brain structure called the "mushroom body," which is shown here in gray.
We're just made of cells, about 100 trillion of them.
Not a single one of those cells is conscious; not a single one of those cells knows who you are, or cares.
I wanted to start and record the activity of individual brain cells in the hippocampus as subjects were forming new memories.
I spent too much time listening to those brain cells in a dark room, by myself.
The patient receives an injection of a radio tracer that's taken up by rapidly proliferating tumor cells, but not by normal cells, and this is the key difference from mammography.
I thought stem cells were a good option, but they hadn't developed to a point where I could take advantage of them yet.
So for instance, you could develop super-efficient roof structures based on giant Amazon water lilies, whole buildings inspired by abalone shells, super-lightweight bridges inspired by plant cells.
I can sprinkle a few cells, stem cells from the patient's own hip, a little bit of genetically engineered protein, and lo and behold, leave it for four months and the face is grown.
Basically, a human body is a conversation going on, both within the cells and between the cells, and they're telling each other to grow and to die, and when you're sick, something's gone wrong with that conversation.
Or we can use cells alone, either your very own cells or different stem cell populations.
We can use, actually, biomaterials and the cells together.
The second challenge was cells.
We could not get enough of your cells to grow outside of your body.
Many scientists can now grow many different types of cells.
Plus we have stem cells.
But even now, 2011, there's still certain cells that we just can't grow from the patient.
That was like the fibers of the cotton candy creating this structure, this tubularized structure, which is a biomaterial that we can then use to help your body regenerate using your very own cells to do so.
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