Examlex
What separates in meiosis I to reduce the diploid number (2n) of chromosomes to the haploid number (n)?
Species Concept
A set of principles used to define what constitutes a species, involving criteria like reproductive isolation and genetic similarity.
Reproductive Isolation
A set of mechanisms or barriers that prevents different species from interbreeding, leading to the formation of new species.
Biological Species Concept
A definition of species according to which a species is a group of interbreeding natural populations that are reproductively isolated from other such groups.
Phylogenetic Species Concept
A method of defining species based on the smallest group of individuals that share a common ancestor, reflecting their evolutionary relationships.
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