Chapter 5 vocabulary/human family tree Flashcards
Mitochondria
the material lineage (mom)
Genetic Drift
the change in frequency of an existing gene variant in the population due to random chance
Copolite
Fossiled Poo: perfect Human sample
Y-Chromosome
the potential linkage
Directional Selection
A mode of natural selection in which a single phenotype is favored causing the allele frequency to continuously shift in one direction.
Bottleneck Effect
An extreme example of genetic drift that happens when the size of a population is severely reduced
Founder Effect
Where a few individuals from a parental population colonize new habitats, resulting in a new distinctive genetic makeup with less variation than the larger population. Lacks genetic variation.
Arabian Peninsula
the original homeland of the Arab People
Disruptive Selection
a specific type of natural selection that actively selects against the intermediate in a population favoring both extremes of the spectrum
Taboo People
the were the 1st in habitations in the Sahara Desert
San Bushmen
Oldest group of humans still intact
Hadzabe Bushmen
One of the last remaining hunter-gatherer tribes on earth. Known for shunning material possessions and social hierarchy, the Hadza roam as needed to find game, timers, and wild berries.
Rock of Jibralter
this is believed to be the location where the Neandermal made their last stand.
Vitiman - D Production
Some ethnicities are better at producing Vitamin D than others
Hardy Weinberg Theorem
States that the mixing of alleles at meiosis and their subsequent recombination do not alter the relative frequencies of the alleles in future generations, if certain assumptions are met
