Bio 114 binghamton - Study guides, Class notes & Summaries

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...

Binghamton Bio 114 exam 2; Questions & Answers…Grade A+ Genetic Drift Correct answer-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 Correct answer-has the effect of changing how frequently an allele is found in a population. GENETIC DRIFT IS RANDOM, ALWAYS DRIFTING UP AND DOWN bottlenecks Correct answer-where a gene pool is significantly re...

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Cell Theory - All organisms are made of cells, and all cells come from pre-existing cells. Conclusion: If you trace a cell's lineage back far enough, you will discover that all cells are descended from a common ancestral cell Evolution - The heritable change in a population over time or a change in gene frequency in a population over a number of generations Proximate process - what happens in short term, measured in fractions of lifetimes Ultimate process - longer timeframe (lifeti...

"Salting out" - certain ions become too concentrated in soils and draw water out of roots by osmosis, causing plant death 2 types of lateral meristems: - Cork cambium vascular cambium 2 ways to increase allele diversity/allele frequency distribution: - 1.) gene flow 2.) mutation 3 Chordate Subphyla - Urochordata, Cephalochordata, and Vertebrata 3 criteria for designating species: Boys Make Pasta - biological, morphological, phylogenetic 4 key characteristics of chordates - 1.) notochor...