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A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.

Francis Crick

For simplicity one can think of the + class as having one extra base at some point or other in the genetic message and the – class as having one too few.
FRANCIS CRICK

Oneself Simplicity Thinking
A theory should not attempt to explain all the facts, because some of the facts are wrong.
FRANCIS CRICK

Explanation Fact Theory Wrong
Protein synthesis is a central problem for the whole of biology, and that it is in all probability closely related to gene action.
FRANCIS CRICK

Action Biology Problem
A knowledge of the true age of the Earth and of the fossil record makes it impossible for any balanced intellect to believe in the literal truth of every part of the Bible in the way that fundamentalists do.
FRANCIS CRICK

Age Balance Earth Fundamental Impossible Intellectual Knowledge Record True
There is no form of prose more difficult to understand and more tedious to read than the average scientific paper.
FRANCIS CRICK

Average Difficult Paper Reading Science Understand
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.
FRANCIS CRICK

Correction Group Place Reading Right Start
It is notoriously difficult to define the word living.
FRANCIS CRICK

Difficult Live World
Anybody who believes that the earth is less than 10,000 years old needs psychiatric help.
FRANCIS CRICK

Believe Earth Help Need. Mental Old
You’re nothing but a pack of neurons.
FRANCIS CRICK

Existence Science Yourself
Evolution is cleverer than you are.
FRANCIS CRICK

Clever Evolution Yourself
In my experience most mathematicians are intellectually lazy.
FRANCIS CRICK

Experience Intellectual Mathematics
Almost all aspects of life are engineered at the molecular level, and without understanding molecules we can only have a very sketchy understanding of life itself.
FRANCIS CRICK

Life Science Understand
Christianity may be OK between consenting adults in private but should not be taught to young children.
FRANCIS CRICK

Children Privacy Religion Teaching Young
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 CRICK

Biology Information Material Myself Science
I also suspect that many workers in this field [molecular biology] and related fields have been strongly motivated by the desire, rarely actually expressed, to refute vitalism.
FRANCIS CRICK

Expression Motivational Myself Strong Work
It would appear that the number of nonsense triplets is rather low, since we only occasionally come across them. However this conclusion is less secure than our other deductions about the general nature of the genetic code.
FRANCIS CRICK

Appearance Nature Ourselves Security

A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.

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A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here.

Related Topics

Popular Authors

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