from The American Heritage® Dictionary of the English Language, 5th Edition.
noun The movement or spread of alleles of one species into the gene pool of another through repeated backcrossing of interspecific hybrids with members of one of the parental species.
from The Century Dictionary.
noun The act of going in or of proceeding inward; entrance.
from the GNU version of the Collaborative International Dictionary of English.
noun The act of going in; entrance.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
noun genetics The movement of a gene from one species to another
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From Latin intrōgressus, past participle of intrōgredī, to step in : intrō-, intro- + gradī, to step; see ghredh- in Indo-European roots.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
introgress + -ion
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Examples
The result was an "introgression" of Neanderthal alleles into the human lineage.
Whatever that allele does, it must have conveyed a very strong evolutionary advantage, because from that single event of what geneticists politely call "introgression" it spread to 70 percent of the human population today.
Whatever that allele does, it must have conveyed a very strong evolutionary advantage, because from that single event of what geneticists politely call "introgression" it spread to 70 percent of the human population today.
For archaic humans, there is no test of the strength or permeability of boundaries between populations; it is common to use the term "introgression" to describe gene flow in such situations, even if such gene flow is fairly common.
Variation is spread across a mean, and they show that variance depends on the natural cycling of environmental conditions, heritability, introgression, and balancing selection.
This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world.
This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world.
This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world.
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