Founder effect Study guides, Class notes & Summaries

Allopatry - Vicariance - Chance separation (earthquake, etc.) Allopatry- Dispersal - A population moves to a new habitat, colonizes it, and forms a new population Although both are possible, which of the following situations is more probable regarding the evolutionary history of a species (i or ii): i. Common characteristics are usually shared with other closely related organisms ii. Common traits evolved several times throughout history and have nothing to do with shared ancestry - i? Ap...

WVU Bio 117 Exam 1 Latest Update Graded A+ evolution a change in a population over time natural selection traits within a population vary, and some individuals leave more offspring than others based on Fitness and selection pressure Five Mechanisms of evolutionary change natural selection gene flow nonrandom mating genetic drift mutation Fitness reproductive success 3 types of selection directional stabilizing disruptive directional selection trend in the bell curv...

CMT Level 1; Questions and Answers 100% Solved Technical Analysis Basic Principles Correct answer Trend is your fried Don't lose = control risk of capital loss Manage your money = Avoid Ruin Charles Dow = founder Uptrend Correct answer Prices reach higher peaks and the troughs are also higher. Downtrend is the opposite. Trend Correct answer directional movement of prices that remains in effect long enough to be identified and still be profitable Supply and Demand Correct answer key f...

Eugenics Founder o :## Galton Walter Cannon o :## fight or flight Solomon Asch o :## Conducted famous conformity experiment that required subjects to match lines. They said lines matched just to conform Genomic imprinting o :## Phenomenon by which certain genes are expressed in a parent-of-originspecific manner. If the allele inherited from the father is imprinted, it is thereby silenced, and only the allele from the mother is expressed. If the allele from the mother is imprinted, ...

bio 117 Exam 1 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+ evolution Correct Answer: a change in a population over time Natural selection Correct Answer: the process by which populations change over time What is necessary for natural selection to occur? Correct Answer: traits within a population vary -some individuals leave more offspring than others (fitness) Mechanisms of evolutionary change Correct Answer: Natural selection, genetic drift, gene flow...

Genetic Drift - the constant changing of allele frequencies (that percentage of all alleles any one, or more, allele occupies in a population) in a population over time, due to random mating. Random Mating - has the effect of changing how frequently an allele is found in a population. GENETIC DRIFT IS RANDOM, ALWAYS DRIFTING UP AND DOWN bottlenecks - where a gene pool is significantly reduced for some reason and a relatively small allele diversity remains. Founder event/effect - a cha...

A thin-shelled crab can more readily move to escape a predator than can a thick-shelled crab, but it is more vulnerable to predators that drill through the shell. Because of these opposing forces, shell thickness for many types of crabs has remained within a narrow range over a long time. This would be an example of _____________________________ selection correct answer: stabilizing What is genetic change in a population over time? correct answer: evolution What is the mode of natural...

Binghamton Bio 114 Exam 2 Questions and Answers Already Passed Genetic Drift Refers to the ongoing variation in allele frequencies within a population over time due to random mating events. Genetic drift causes allele frequencies to fluctuate randomly. Random Mating Influences allele frequencies by altering how often specific alleles appear within a population. This process is inherently unpredictable, with allele frequencies increasing or decreasing randomly. Bottlenecks O...

TAMU Biology 112 Final Exam Questions and Answers 100% Pass Linnaeus - Answer- Binomial nomenclature Darwin - Answer- Fossils, strata Cuvier - Answer- catastrophic events caused extinction Hutton and Lyell - Answer- Gradualism, earth is OLD Lamarck - Answer- Use it or lose it, we get bigger and better, Adaptations - Answer- Inherited characteristics that enhance survival and reproduction Descent with Modification - Answer- Common ancestor (unity in life) aka evolution Alfred Wallace - A...

In what year was Georgia established? 1732 When did settlement take place in Savannah? 1733 How long was Georgia in existence before there was a governor or governing body within the colony itself? Two decades Who ruled Georgia in the beginning? Board of Trustees Define: Board of Trustees The governing body of Georgia in London England. King George signed a charter establishing the colony and creating its governing board What years is Georgia referred to a...