atavism

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atavism

 [at´ah-vizm]
apparent inheritance of characters from remote ancestors. adj., adj atavis´tic.

at·a·vism

(at'ă-vizm),
The appearance in an individual of characteristics presumed to have been present in some remote ancestor; reversion to an earlier biologic type, a throwback.
[L. atavus, a remote ancestor]

atavism

/at·a·vism/ (at´ah-vizm) apparent inheritance of a characteristic from remote rather than immediate ancestors.atavis´tic

atavism

(ăt′ə-vĭz′əm)
n.
1. The reappearance of a characteristic in an organism after several generations of absence.
2. An individual or a part that exhibits atavism. Also called throwback.
3. The return of a trait or recurrence of previous behavior after a period of absence.

at′a·vist n.
at′a·vis′tic adj.
at′a·vis′ti·cal·ly adv.

atavism

[at′əviz′əm]
Etymology: L, atavus, ancestor
the appearance in an individual of traits or characteristics more like those of a grandparent or earlier ancestor than of the parents. Atavistic data may offer clues to an examining physician of genetic or familial health factors. atavistic, adj.
Any of a number of normally dormant traits—e.g., the presence in humans of multiple nipples, appearance of vestigial hind limbs in whales, or possibly hereditary hypertrichosis in humans

atavism

Any of a number of normally dormant traits–eg, the presence in humans of multiple nipples, appearance of vestigial hind limbs in whales, or possibly hereditary hypertrichosis in humans

at·a·vism

(at'ă-vizm)
The appearance in an individual of characteristics presumed to have been present in some remote ancestor; reversion to an earlier biologic type; a throwback.
[L. atavus, a remote ancestor]

atavism

The reappearance of a genetic characteristic after generations of absence. This may be caused by the coincidence of two recessive genes, by recombination, or by mutation. The organism or individual so produced is often called a ‘throwback’.

atavism

the recurrence of a characteristic possessed by an ancestor after an absence for several generations.

atavism

apparent inheritance of characters from remote ancestors, caused by recessive genes. Called also 'throwback'.