A Quote by Theodor Boveri
For it is not cell nuclei, not even individual chromosomes, but certain parts of certain chromosomes from certain cells that must be isolated and collected in enormous quantities for analysis; that would be the precondition for placing the chemist in such a position as would allow him to analyse [the hereditary material] more minutely than [can] the morphologists ... For the morphology of the nucleus has reference at the very least to the gearing of the clock, but at best the chemistry of the nucleus refers only to the metal from which the gears are formed.
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Except for certain moments - when cells are dividing, for instance - chromosomes don't form compact, countable bodies inside cells. Instead, they unravel and flop about, which makes counting chromosomes a bit like counting strands of ramen in a bowl.
I always worked as an individual artist even when Group Material asked me to join the group. There are certain things that I can do by myself that I would never be able to do with Group Material. First of all, they are a totally democratic entity and although you learn a lot from it, and it's very moving, it's very exacting, everything has to be by consensus, which is the beauty of it, but it is much more work. It's worth it 100%. But as an individual artist there are certain things that I want to bring out and express, and the collaborative practice is not conducive to that.
The aim of a nuclear-transplant experiment is to insert the nucleus of a specialized cell into an unfertilized egg whose nucleus has been removed.
The moment always comes when, having collected one's ideas, certain images, an intuition of a certain kind of development- whether psychological or material- one must pass on to the actual realization.
Although life is a continuous process, fertilization is a critical landmark because, under ordinary circumstances, a new, genetically distinct human organism is thereby formed.... The combination of 23 chromosomes present in each pronucleus results in 46 chromosomes in the zygote. Thus the diploid number is restored and the embryonic genome is formed. The embryo now exists as a genetic unity.
Telomeres are the protective caps at the ends of chromosomes in cells. Chromosomes carry the genetic information. Telomeres are buffers. They are like the tips of shoelaces. If you lose the tips, the ends start fraying.
When one admits that nothing is certain one must, I think, also admit that some things are much more nearly certain than others. It is much more nearly certain that we are assembled here tonight than it is that this or that political party is in the right. Certainly there are degrees of certainty, and one should be very careful to emphasize that fact, because otherwise one is landed in an utter skepticism, and complete skepticism would, of course, be totally barren and completely useless.
There's certain classes you have to take, certain things you have to do, certain money you must have. Then, if you listen to the counselors and social workers and everybody else talking at you, you would think that once you got out of high school and college, life would be beautiful. But it's not.
It seems a miracle that young children easily learn the language of any environment into which they were born. The generative approach to grammar, pioneered by Chomsky, argues that this is only explicable if certain deep, universal features of this competence are innate characteristics of the human brain. Biologically speaking, this hypothesis of an inheritable capability to learn any language means that it must somehow be encoded in the DNA of our chromosomes. Should this hypothesis one day be verified, then lingusitics would become a branch of biology.
But when there were certain moments or scenes that required a very specific nuance or performance, I myself would act out the scene or the sequence and that would inspire the actors. Of course, I can't really express emotions on camera, but I was very active in showing a certain action or a blocking for an actor. I would also participate in certain stunts myself and because of that, I would get bruises or cuts on my knees and elbows.
[Revealing character] can't be done by pushing the person into position or arranging his head at a certain angle. It must be accomplished by provoking the victim, amusing him with jokes, lulling him with silence, or asking impertinent questions which his best friend would be afraid to voice.
Certain environments, certain modes of life, and certain rules of conduct are more conducive to inner and outer harmony than others. There are, in fact, certain roads that one may follow. Simplification is one of them.
This is a world that is much more uncertain than the past. In the past we were certain, we were certain it was us versus the Russians in the past. We were certain, and therefore we had huge nuclear arsenals aimed at each other to keep the peace. That's what we were certain of... You see, even though it's an uncertain world, we're certain of some things. We're certain that even though the "evil empire" may have passed, evil still remains.
Certain faults are necessary for the existence of the individual. We would resent it if old friends were to get rid of certain peculiarities.
DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses. RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of proteins.
there's only one thing i know for certain anymore." he turned, his eyes a clear black. "that i would do anything for you, even if it means going against mu instincts or my very nature. i would lay down everything i possess, even my soul, for you. if that isn't love, it's the best i have.
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