Gregor Mendel

Those characters which are transmitted entire, or almost unchanged in the hybridization, and therefore in themselves constitute the characters of the hybrid, are termed dominant, and those which become latent in the process, recessive.

The constant difference observed between two forms of a plant, however small it may be, is sufficient to distinguish them as two distinct varieties.

It is clear that the hybrids form seeds having one or other of the two differentiating characters, and that half of the seeds develop again the hybrid form, while the other half yield plants which remain constant and receive the dominant or the recessive characters in equal numbers.

The results of the experiments, however, afford a proof that the pea hybrids, as regards all of the characters investigated, form as many kinds of germinal and pollen cells as there are possible constant combination forms, and that these cells are produced in equal numbers.

The law of combination of different characters, which governs the development of the hybrids, is essentially the same for all the characters investigated.

The distinguishing characters of two plants can, after all, only be based on differences in the chemical constitution of their cells.

The constant characters which appear in the first generation of hybrids are called dominant, those which remain latent are called recessive.

The results of the experiments allow the conclusion that the constant differentiating characters, which are transmitted by the parents to the hybrids, are not changed by the hybridization.

The number of forms which arise from the combination of different characters is determined by the number of differentiating characters.

The principle of constant characters is of fundamental importance for the understanding of the formation of hybrids.

The development of the hybrids follows a definite law, which is based on the constant characters of the parent plants.

The experiments were designed to determine the number of different forms under which the offspring of hybrids appear, and to ascertain their numerical relations.

It is generally known that the hybrids of different species or varieties of plants, as a rule, are not constant in their progeny.

The characters which are transmitted unchanged to the hybrids are termed dominant, and those which become latent in the process, recessive.

The constant characters are those which appear in the first generation of hybrids, and which are transmitted unchanged to the following generations.

The results of the experiments afford a proof that the pea hybrids, as regards all of the characters investigated, form as many kinds of germinal and pollen cells as there are possible constant combination forms.

I knew that the results I had arrived at were not easily accepted, and that a long time would pass before they were understood and acknowledged.

The value of my experiments is not in the number of plants, but in the careful observation of their development.

It is indeed a pity that the results of my experiments have not been more widely recognized.

My time as a prelate is so fully occupied that I have little leisure for scientific pursuits.