genetic dead end
No descendants possible
A genetic dead end is an organism or lineage that fails to pass on its genes—whether through death before reproduction, sterility, or simply not having offspring.
The term appears in biology discussing evolutionary branches that died out, but it's also used as an insult suggesting someone is unfit to reproduce: Don't take dating advice from that genetic dead end.
Inability to reproduce
- barrennessInability to bear fruit
- sterileFree from microorganisms
- nonviableIncapable of succeeding
- unfruitfulFailing to produce results
Constriction limiting throughput
- inbreedingReproduction between close relatives
- maladaptationPoorly suited inherited trait
Lacking any offspring
- heirlessHaving no inheritor
- lastFinal in sequence
- terminalAt the endpoint
- finalityState of conclusive completion
bloodline · lineage · dynasty · family tree · ancestry · posterity · descendants · progeny
No longer existing
- dodoVanished flightless bird
- passenger pigeonExtinct migratory North American dove
- Tasmanian tigerExtinct striped marsupial carnivore
- mammothExtinct elephant with curved tusks
infertility
Inability to reproduce
- barrennessInability to bear fruit
- sterileFree from microorganisms
- nonviableIncapable of succeeding
unfruitful · mule · liger
bottleneck
Constriction limiting throughput
- inbreedingReproduction between close relatives
- maladaptationPoorly suited inherited trait
childless
Lacking any offspring
finality · bloodline · lineage · dynasty · family tree · ancestry · posterity · descendants · progeny · succession
extinct
No longer existing
- dodoVanished flightless bird
- passenger pigeonExtinct migratory North American dove
- Tasmanian tigerExtinct striped marsupial carnivore
mammoth · megafauna · extirpated · Neanderthal · trilobite
genetic dead endreproductive success
Offspring contribution to future generations
progenitor · matriarch · patriarch · common ancestor · ancestral line
genetic, gene, genes, genetics, genetically, genome, genomic, genomics, genotype