John Tyler Bonner Quotes

I didn't know how babies were made until I was pregnant with my fourth child.

It's no mistake that the moment of impregnation is called conception: at first, parenthood is nothing more than an idea.

The moment-of-conception fallacy implies that fertilization is a simple process with never a doubt as to whether it has or has not happened.

For each chromosome contributed by the sperm there is a corresponding chromosome contributed by the egg, there are two chromosomes of each kind, which together constitute a pair.

Life is the division of human cells, a process which begins at conception.

Now an embryo may seem like some scientific or laboratory term, but in fact the embryo contains the unique information that defines a person. All you add is food and climate control, and some time, and the embryo becomes you or me.

When we anthropomorphize the egg and sperm, when we turn them into a miniature bride and groom complete with personalities, what effect does this have on abortion legislation?

Phylogeny and ontogeny are, therefore, the two coordinated branches of morphology. Phylogeny is the developmental history [Entwickelungsgeschichte] of the abstract, genealogical individual; ontogeny, on the other hand, is the developmental history of the concrete, morphological individual.

Human reproduction can be a sticky subject—” “Ewww!” groaned a chorus of students

Almost nothing is known from hybridization studies about the inheritance of courtship behavior of females, or of their responsiveness to particular male signals.

I left my frogs, which I had grown, with my supervisor, who had moved to Geneva, and he and a technician grew them up. So by 1962, they were adults, and one could publish a paper to say that these animals, derived from nuclear transfer, really were absolutely normal. So it took a little time to get through.

Women of child-bearing age steadily run out of eggs by the continuous process of cell death. While reading a copy of the 'Guardian' carefully from cover to cover, a normal woman will have lost on average two eggs - while, typically, a normal man will have made 70,000 new sperm.

I do not know of any credible evidence that suggests Dr. Zavos can clone a human being. This seems to be yet another one of his claims to get publicity.

Some of the exponents of this theory of heredity have attempted to elude the difficulty of placing a whole world of wonders within a body so small and so devoid of physical structure as the germ.

As a former fetus ....

Even if every gene in the human body were cloned it would be impossible to reconstitute a human being …. To find a substance freely occurring in nature is mere discovery, and is therefore unpatentable. However, if a substance has first to be isolated from its surroundings and a process for obtaining it is developed, that process is patentable

For my part, I would say that the male sperm and seeds of plants have been penetrated so far that there is nothing further to discover in this great secret, but I could err in my opinion.

It's amazing what your body does to produce another human... you should thank your body for what it does.

The science is settled; it's not even a consensus, it is a unanimity that human life begins at conception.

Man comes not from an egg but from an animalcule that is found in male sperm.

The process of the body changing and making a whole human fascinates me.

The earliest period at which I have been able to detect the existence of the spleen in the human embryo is at the second month.

I've wanted to write a book on embryology, that extraordinary journey where you start off as a single cell and end up with a human body, for a general audience for years.

Science has advanced a long way in the 44 years since Roe v. Wade, and it is time that our laws reflect the undeniable truth that life begins at fertilization and that unborn citizens are entitled to the same protections as every American.

Sexually,Woman is Nature's contrivance for perpetuating its highest achievement.