Ch 23
evolution of populations
evolution of populations
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Cartes-fiches
individuals that can and do interbreed in nature but cannot and do not interbreed with others
The total of all the alleles in a population at a given time is
called the population’s __
Blending of chance and sort are dependent solely on __ for new alleles and on sexual reproduction, migration, and GENE FLOW to increase genetic diversity.
__ cause alterations in proteins that produce phenotypes.
__ acts against extreme phenotypes and favors the mean. Keep status quo.
__ common during periods of change. One extreme is favored over the middle or the other extreme
__ favors the extremes over the mean (rare).
__ selection of mates, can influence which traits get transmitted to the next generation. Physical characteristics as indicators of vigor/fitness. Selection of mates usually falls on the female. Perpetuation of the genes that influence her decision
Evolution cannot produce a perfect organism cos...
