Strands
in sentence
115 examples of Strands in a sentence
It's double-stranded, it's a double helix, has the As, Ts, Cs and Gs that pair to hold the
strands
together.
We want to look at individual
strands
and not think about the double helix.
Now for the last 25 years, Ned Seeman and a bunch of his descendants have worked very hard and made beautiful three-dimensional structures using this kind of reaction of DNA
strands
coming together.
Now, we can't actually take a movie of this process, but Shawn Douglas at Harvard has made a nice visualization for us that begins with a long strand and has some short
strands
in it.
And what happens is that we mix these
strands
together.
We heat them up, we add a little bit of salt, we heat them up to almost boiling and cool them down, and as we cool them down, the short
strands
bind the long
strands
and start to form structure.
When you look at DNA origami, you can see that what it really is, even though you think it's complicated, is a bunch of double helices that are parallel to each other, and they're held together by places where short
strands
go along one helix and then jump to another one.
You zoom in, there are just four DNA
strands
and they have little single-stranded bits on them that can bind to other tiles, if they match.
You can just change a couple of the DNA
strands
in this binary representation and you'll get 96 rather than 32.
So, you can ask, how many DNA
strands
are required to build a square of a given size?
If we wanted to make a square of size 10, 100 or 1,000, if we used DNA origami alone, we would require a number of DNA
strands
that's the square of the size of that square; so we'd need 100, 10,000 or a million DNA
strands.
And so we can exponentially reduce the number of DNA
strands
we use, if we use counting, if we use a little bit of computation.
They are just
strands
to the same thread.
Instead of metal, glass can be carefully melted and drawn into flexible fiber strands, hundreds of kilometers long and no thicker than human hair.
And instead of electricity, these
strands
carry pulses of light, representing digital data.
And a fiber optic cable contains hundreds of these fiber
strands.
Because in order to be stable in cells, the two
strands
of a DNA double helix have to form base pairs.
And because C only pairs with G, and T only pairs with A, simply changing a C to a T on one DNA strand creates a mismatch, a disagreement between the two DNA
strands
that the cell has to resolve by deciding which strand to replace.
We took our chip over to Hewlett-Packard and used their atomic force microscope on one of these spots, and this is what you see: you can actually see the
strands
of DNA lying flat on the glass here.
But to really illustrate what it means to be nano-sized, I took one of my hair
strands
and placed it under the microscope.
It's all these
strands
and loops and helices and twists and turns, and it has to be in just this conformation to work properly.
But I had to rig it with
strands
of glue.
The flag had to be made out of little
strands
of gold.
One of the
strands
of thinking I was involved in was that sameness is so incredibly overrated.
We're all
strands
in it.
I like to think of it as a mesh of civilizations, in which the
strands
of different cultures are intertwined.
Just as one strand of spaghetti contacts many other
strands
on your plate, one neuron touches many other neurons through their entangled branches.
Plot
strands
are left untied.
Mmmm, a previous summary says "if you like aliens and predator you will enjoy this film" i could not disagree more, this film pays no respect to its weighty lineage and has reduced two of the best loved sci fi
strands
to little more than a teen horror slasher movie, it has none of the tension or foreboding present in previous alien or predator movies and there is no discernible lead character, i really did not care about any of the characters and i positively yearned to see the stereotypical cast die as soon as possible in the vain hope something better would replace them, it really takes super human incompetence to have two of the most fearsome creatures ever invented positively fail to make a gripping thrilling movie, only watch this if you want to see how NOT to do it.
It's the lovely and extremely talented Joan Woodbury who ties the various
strands
of the wide-ranging story together.
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