Quotes About Biology

But the term code-script is, of course, too narrow. The chromosome structures are at the same time instrumental in bringing about the development they foreshadow.

What an organism feeds upon is negative entropy. Or, to put it less paradoxically, the essential thing in metabolism is that the organism succeeds in freeing itself from all the entropy it cannot help producing while alive.

THE STRIKING CONTRAST In biology we are faced with an entirely different situation.

And with advances in cellular and molecular biology, we can piece together how such nervous system and hormonal changes can affect our susceptibility to disease.

It is only when you have average or low levels of cholesterol that being a carrier of "bad" allele 4 puts you at a greater risk than others with the same cholesterol level.

Proteins are made up of one or more polypeptide chains, which are strings of another kind of unit, amino acids, of which there are twenty types. The sequences of nucleotides in DNA encode the sequences of amino acids in the polypeptide chains of protein molecules.

There is no such limit with DNA replication. The DNA reproduction system is indifferent to the content or function of what is copied

However, the translation from DNA into proteins is not direct; the DNA sequence is first copied into mRNA (messenger ribonucleic acid, another linear sequence of nucleotides), and only then is it translated into proteins.

So how about you?, I said: what do you do, if you don't mind my asking; -Not at all, he said: I'm into mitosis; -Aren't we all, I said;-

I want to know where joy lives. I'd interview scientists, religious leaders and heads of state. I'd want to find out exactly what makes people happy. I'd want to look into the biology, the chemistry of the human brain.

People say, 'Where do you get your strength from?' Well, where does an ape get his strength from? They are 20 times stronger than humans, and they don't rely on a meat-based diet. They eat plants all day long. It's a myth that you need meat for strength.

Although their maneuverability is limited, blind flies can fly remarkably well.

Natural selection will not remove ignorance from future generations.

We discovered a mechanism which is like the garbage machine of the body. We need to remove damaged proteins and create new ones in their place, and we discovered the machine that does this.

What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.

Aging is mostly the failure to repair.

When you think of all the things that are made from oil or in the chemical industry, if in the future we could find cells to replace most of those processes, the ideal way would be to do it by direct design.

Cells will die in minutes to days if they lack their genetic information system. They will not evolve, they will not replicate, and they will not live.

To rightly recognize that men and women are equal under the law is perfectly removed from the fact that men and women are distinguishable beings that have been shaped by sex-specific evolutionary challenges. Accordingly, there is no reason to assume or expect that there should be equal representation of the two sexes across all contexts.

A short telomere represents a persistent and non-repairable damage to the cells, which is able to prevent their division or regeneration.

My body feels like it is asking to reproduce.

Formation of a new race takes place when, over several generations, individuals in one group reproduce more frequently among themselves than they do with individuals in other groups.

Once DNA acquires the ability to persist forever, the carriers become disposable. Essentially, our bodies are designed to last long enough to reproduce.

In cloning, in contrast, reproduction is asexual - the cloned child is the product not of two but of one.