Quotes About Biology

REFERENCE RANGES FOR DHEA Category Age DHEAS Normal Range (mcg/dL) Men 18 to 19 108 to 441 20 to 29 280 to 640 30 to 39 120 to 520 40 to 49 95 to 530 50 to 59 70 to 310 60 to 69 42 to 290 69 and older 28 to 175 Women 18 to 19 145 to 395 20 to 29 65 to 380 30 to 39 45 to 270 40 to 49 32 to 240

REFERENCE RANGES FOR TOTAL TESTOSTERONE Category Total Testosterone Normal Range (ng/mL) Men (13 to 17 years old) 28 to 1110 Men (over 18 years old) 280 to 800 Women (under 18 years old) 6 to 82

REFERENCE RANGES FOR CALCIUM Calcium (mg/dL) Category Greater than 12 Very high (Moderate to severe hypercalcemia) 10.2 to 12 High (Mild hypercalcemia) 8.6 to 10.2 Normal Less than 8.6 Low (Hypocalcemia)

This is not a Western idea, but fathers and sons arrive at that relationship only by claiming that relationship: that is, by paying for it. If the relationship of father to son could really be reduced to biology, the whole earth would blaze with the glory of fathers and sons. (But to pursue this further carries us far beyond the confines of the present discussion.)

The history of life is written in terms of negative entropy.

During a sabbatical he learned enough biology to make a small but genuine contribution to geneticists' understanding of mutations in DNA.

Gregor Mendel's years of research with green and yellow peas showed that such a thing must exist. Colors and other traits vary depending on many factors, such as temperature and soil content, but something is preserved whole; it does not blend or diffuse; it must be quantized. Mendel had discovered the gene, though he did not name it. For him it was more an algebraic convenience than a physical entity.

The Mandelbrot set obeys an extraordinarily precise scheme leaving nothing to chance whatsoever. I strongly suspect that the day somebody actually figures out how the brain is organized they will discover to their amazement that there is a coding scheme for building the brain which is of extraordinary precision. The idea of randomness in biology is just reflex.

The music is the information. Likewise, the base pairs of DNA are not genes. They encode genes. Genes themselves are made of bits.

Because gender can be uncomfortable, there are easy ways to close this conversation. Some people will bring up evolutionary biology and apes, how female apes bow to male apes - that sort of thing. But the point is this: we are not apes. Apes also live in trees and eat earthworms. We do not.

Darwin's idea of natural selection makes people uncomfortable because it reverses the direction of tradition.

One of the ultimate challenges for biology is to understand the brain's processing of unconscious and conscious perception, emotion, and empathy.

The general rule is that anything that is passed on in reproduction does not undergo senescence.

We see that mice that undergo caloric restriction show a lower telomere shortening rate than those fed with a normal diet. These mice therefore have longer telomeres as adults, as well as lower rates of chromosome anomalies.

I wanted to be a scientist. My undergraduate degree is in biology, and I really did think I might go off and be some kind of a lady Darwin someplace. It turned out that I'm really awful at science and that I have no gift for actually doing science myself. But I'm very interested in others who practice science and in the stories of science.

I did do my undergraduate work in biology.

As has repeatedly been stated, the underlying hypothesis, which in a number of cases has been supported by direct experimental evidence, is that each gene controls the production, function, and specificity of a particular enzyme.

Ultimately, biological phenomena involve molecules, and understanding them involves understanding the underlying chemistry. In my opinion, this is a particularly exciting area of chemistry.

Bioethics is a very, very important field. As we get more and more in the arena of understanding science and getting better opportunities, the fact that you can do things with biological sciences that have an impact on a human being means you must have ethical standards.

Biology is far from understanding exactly how a single cell develops into a baby, but research suggests that human development can ultimately be explained in terms of biochemistry and molecular biology. Most scientists would make a similar statement about evolution.

The moment I saw the model and heard about the complementing base pairs I realized that it was the key to understanding all the problems in biology we had found intractable - it was the birth of molecular biology.

This field is not necessarily glamorous, nor does it often produce immediate results, but it seeks to increase our basic understanding of living processes.

There's a world of insights to be gained into human health and disease by understanding how gravity and space radiation influence biology.

Our understanding of how DNA informs our health and development is advancing at an incredible pace.