intercross

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the case of methodical selection, a breeder selects for some definite object, and if the individuals be allowed freely to intercross, his work will completely fail.

From The Origin of Species by means of Natural Selection, 6th Edition by Darwin, Charles

He says, for example:— In the case of methodical selection, a breeder selects for some definite object, and if the individuals be allowed freely to intercross, his work will completely fail.

From Darwin, and After Darwin (Vol 3 of 3) Post-Darwinian Questions: Isolation and Physiological Selection by Romanes, George John

Much other indirect evidence could be given with respect to the extent to which varieties of the same species spontaneously intercross.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles

Lathyrus odoratus, varieties of, never naturally intercross in England.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles

Mr. Cheeseman also remarks, that as certain Orchids in New Zealand which require insect-aid for their fertilisation bear only a single flower, distinct plants cannot fail to intercross.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles