Rank Societies Are Ones in Which

question 48

Multiple Choice

Rank societies are ones in which:

• A) there are a series of socio-political strata
• B) there are a few sociopolitical ranks filled by a relatively small number of people
• C) all people have equal access to wealth
• D) all people pass through a series of ranks as they age

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Definitions:

Maximum Parsimony

Maximum parsimony is a statistical method for reconstructing phylogenies that identifies the tree topology that minimizes the total amount of change, or the number of steps, required to fit the data to the tree.

Introgression

Introgression describes the movement of alleles from one species or population to another.

Incomplete Lineage Sorting

Occurs when a genetic polymorphism persists through several speciation events. When fixation of alternative alleles eventually occurs in the descendent species, the pattern of retention of alleles may yield a gene tree that differs from the true phylogeny of the species.

Genetic Hitchhiking

Genetic hitchhiking occurs when an allele increases in frequency because it is physically linked to a positively selected allele at a nearby locus.