Bottleneck effect Study guides, Class notes & Summaries

Bio 100 Exam 3 (Jaeger UNLV) Questions and Answers 100% Pass **Evolution is defined as** any change in the phenotype of a population over successive generations due to genetic factors. **Common Descent with Modification entails** species undergoing modifications across generations. These changes can lead to the emergence of new, distinct species. **Species are** various types of organisms. Individuals within the same species share genetic similarities and can potentially interbre...

McMaster Bio 1M03: Exam Questions And Answers Why might Pasteur's experiment be inconclusive? - ANS The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - ANS To ensure that results were not achieved by random chance What is the definition of a replicate? - ANS Unit that shares a common thing (4 mice in one cage = 1 repl...

Population Genetics Exam 2 Questions with Answers Which of the following statements is most accurate concerning the founder effect? a. It increases genetic variation. b. It is not an example of genetic drift. c. It results when a small population breaks away from a larger one. d. It only occurs amongst the Amish. - Answer-c Bottleneck events are always caused by the death of most of a species' population. - Answer-f Conservation efforts have preserved most of the bison's orig...

WGU C215 Study Guide – FINAL with correct answers 2023 (New Questions) Total Quality Management (TQM) Philosophy - correct answer 1. customer focus 2. continuous improvement 3. employee empowerment 4. use of quality tools 5. product design 6. process management 7. managing supplier quality Process Capability Index (Cpk) - correct answer Basic function of Six Sigma. Measures the process potential and performance of processes. The higher the range of Cpk, the improved is the ability of...

BIO-107 test 1 Questions and Answers 100% Solved Microevolution Evolutionary change below the species level; Change in allele frequencies over generations. It is called micro evolution because it focuses on evolution in population, which is the smallest scale. (individuals do not evolve.) 3 mechanisms that cause allele change Natural seletion, genetic drift( chance events that alter allele frequencies), and gene flow (the transfer of alleles between populations). Population is a group...

McMaster Bio 1M03: Exam Questions And Answers All Verified Why might Pasteur's experiment be inconclusive? - ANS The swan-necked flask broth may not support cell growth, or the broth was poisoned. Experiment did not confirm hypothesis that all cells come from pre-existing cells Why are replicates important in experiments? - ANS To ensure that results were not achieved by random chance What is the definition of a replicate? - ANS Unit that shares a common thing (4 mice in ...

Another term for evolution by Darwin - Answer-descent with modification Are habitat isolations physical barriers? - Answer-No just different habitats not an actual physical fence or anything Convergent evolution - Answer-evolution of analogous (similar) features in related groups convergent evolution tells us about ancestry. t/f? - Answer-False it does not it only tells us the evolution of similar features Dependent selection favors which phenotype? - Answer-The less common in a population...

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...

What is some evidence for endosymbiosis? - -Mitochondria replicate similar to binary fission -plastids have circular chromosomes -ribosomes are similar to prokayotes What is Hardy Weinburg equilibrium? - p^2 + 2pq+ q^2 =1 -If a population is at equilibrium, (percentages don't change) -No genetic drift, gene flow, no natural selection, no new alleles, no sexual selection -Genetic drift, gene flow, and natural selection cause most evolutionary change Acquired vs. Inherited traits - Acquire...

Which kind of chemical reaction involves the attachment or removal of a phosphate group? a. Oxidation-reduction b. hydrolysis c. phosphorylation Which of the following statements about biological evolution is false? a. individual organisms evolve b. biological populations change over time c. evolutionary change has been observed in laboratory experiments d. evolutionary change has been observed in natural populations. e. All of the above is true correct answers a Which of the fo...