Quotes About Genetics

If you think being descended from apes is bad for your self esteem, then get used to the idea that you are also descended from viruses.

It is not confined to genetic systems, but explains the way that virtually all of human culture changes: from morality to technology, from money to religion.

We now know that Lamarckism cannot work because bodies are built from cakelike recipes, not architectural blueprints, and it is simply impossible to feed information back into the recipe by changing the cake.

In about ten years, the genes of the AIDS virus change as much as human genes change in 10 million years. For bacteria, thirty minutes can be a lifetime. Human beings, whose generations are an eternal thirty years long, are evolutionary tortoises.

But until the genetic code was cracked in the 1960s, we did not know what we now know: that all life is one; seaweed is your distant cousin and anthrax one of your advanced relatives.

Ä°ki prion uzman?n yazd??? gibi, ''kiÅŸisel trajedilerin, etnik felaketlerin ve ekonomik y?k?mlar?n asl?, küçük bir molekülün haylazca yanl?? katlanmas?nda aranabilir.

Bizler, miras ald???m?z hücre intihar? mekanizmas?na mahkumuz.

Many modern accounts of the history of eugenics present it as an example of the dangers of letting science, genetics especially, out of control. It is much more an example of the danger of letting government out of control.

As James Watson has put it, 'We talk about gene therapy as if it can change someone's fate, but you can also change someone's fate if you pay off their credit card.

Suppose, for instance, that a gene appeared on the X chromosome that specified the recipe for a lethal poison that killed only sperm carrying Y chromosomes. A man with such a gene would have no fewer children than another man. But he would have all daughters and no sons.

There are few clearings in an elm forest and few vacancies on an oyster bed. Each vacancy will attract many thousands of applicants in the form of new seeds or larvae. Therefore, it does not matter that your young are good enough to survive. What matters is whether they are the very best. Sex gives variety, so sex makes a few of your offspring exceptional and a few abysmal, whereas asex makes them all average.

In other words, long-lived, late-maturing mammals do more genetic mixing regardless of their size or fecundity than short-lived, early maturing mammals. By Burt's measure, man has thirty crossovers, rabbits ten, and mice three. Tangled-bank theories would predict the opposite.17

Sex, according to the Red Queen theory, has nothing to do with adapting to the inanimate world—becoming bigger or better camouflaged or more tolerant of cold or better at flying—but is all about combating the enemy that fights back.

Evolutionary tortoises nonetheless do more genetic mixing than evolutionary hares. Austin Burt's discovery of a correlation between generation length and amount of recombination is evidence of the Red Queen at work. The longer your generation time, the more genetic mixing you need to combat your parasites.

The point is that nothing could be more "instinctive" than the predisposition to learn a language. It is virtually unteachable. It is hard-wired. It is not learned. It is—horrid thought—genetically determined. And yet nothing could be more plastic than the vocabulary and syntax to which that predisposition applies itself. The ability to learn a language, like almost all the other human brain functions, is an instinct for learning.

Sexual relations are driven not by what is good, in evolutionary terms, for men or for women, but for their chromosomes. The ability to seduce a woman was good for Y chromosomes in the past; the ability to resist seduction by a man was good for X chromosomes in the past.

genetically different population, so that she can have offspring with varied genes and little risk of inbred diseases. But perhaps she – and T-shirt-sniffing people – are actually doing something that makes sense in terms of the blood-group story. Remember that, when making love in a time of cholera, an AA person is best off looking for a BB mate, so that all their children will be cholera-resistant ABs.

The common analogy for what Williams was describing is a lottery. Breeding asexually is like having lots of lottery tickets all with the same number. To stand a chance of winning the lottery, you need lots of different tickets. Therefore, sex is useful to the individual rather than the species when the offspring are likely to face changed or unusual conditions.

Indeed, their bodies are designed with planned obsolescence called ageing that causes them to decay after they reach breeding age – or, in the case of squid or Pacific salmon, to die at once. None of this makes any sense unless you view the body as a vehicle for the genes, as a tool used by genes in their competition to perpetuate themselves. The body's survival is secondary to the goal of

You inherit not your IQ but your ability to develop a high IQ under certain environmental circumstances. How does one parcel that one into nature and nurture? It is frankly impossible.

We're genetically predisposed toward certain behaviors that we've collectively decided are unhelpful; adultery and racism are possible examples. With reasonable success, we mitigate those impulses through civil codes, religious rituals, maternal warnings—the whole bag of tricks we call culture.

Geneticists have confirmed that milk-drinking adults are the exception to the norm, identifying a deviant gene on the second chromo-some that causes lactase persistence. (The gene is SNP C/T13910, if you care.)

your happiness depends on (1) genetics, (2) circumstances, and (3) things you can control.

And if I do this, day after day my behavior will change. Instead of living out of the scripts given to me by my own parents or by society or by genetics or my environment, I will be living out of the script I have written from my own self-selected value system.