It seems likely that most if not all the genetic information in any organism is carried by nucleic acid – usually by DNA, although certain small viruses use RNA as their genetic material.
FRANCIS CRICKWhen you start in science, you are brainwashed into believing how careful you must be, and how difficult it is to discover things. There’s something that might be called the ‘graduate student syndrome’; graduate students hardly believe they can make a discovery.
More Francis Crick Quotes
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Avoid the temptation to work so hard that there is no time left for serious thinking.
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Protein synthesis is a central problem for the whole of biology, and that it is in all probability closely related to gene action.
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One of the most frightening things in the Western world, and in this country in particular, is the number of people who believe in things that are scientifically false. If someone tells me that the earth is less than 10,000 years old, in my opinion he should see a psychiatrist.
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An honest man, armed with all the knowledge available to us now, could only state that in some sense, the origin of life appears at the moment to be almost a miracle, so many are the conditions which would have had to have been satisfied to get it going.
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In my experience most mathematicians are intellectually lazy.
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The balance of evidence both from the cell-free system and from the study of mutation, suggests that this does not occur at random, and that triplets coding the same amino acid may well be rather similar.
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We are sometimes asked what the result would be if we put four +’s in one gene. To answer this my colleagues have recently put together not merely four but six +’s.
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Chance is the only source of true novelty.
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If, for example, all the codons are triplets, then in addition to the correct reading of the message, there are two incorrect readings which we shall obtain if we do not start the grouping into sets of three at the right place.
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Exact knowledge is the enemy of vitalism.
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There is no form of prose more difficult to understand and more tedious to read than the average scientific paper.
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If revealed religions have revealed anything it is that they are usually wrong.
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Exploratory research is really like working in a fog. You don’t know where you’re going. You’re just groping. Then people learn about it afterwards and think how straightforward it was.
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It is notoriously difficult to define the word living.
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It is essential to understand our brains in some detail if we are to assess correctly our place in this vast and complicated universe we see all around us.
FRANCIS CRICK