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Bio 2 Final Exam- Palmtag FGCU Updated 2024/2025 Verified 100% $7.99   Add to cart

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Bio 2 Final Exam- Palmtag FGCU Updated 2024/2025 Verified 100%

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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 genet...

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  • September 15, 2024
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  • Bio 2 - Palmtag FGCU
  • Bio 2 - Palmtag FGCU
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ACADEMICMATERIALS
Bio 2 Final Exam- Palmtag FGCU
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 - Acquired- changes made to body that don't affect DNA



Inherited- traits derived from DNA



What was Darwin's and Wallace's contribution to science? - mechanism for which evolution
occurs, evolution with natural selection



Genetic Drift - Chance events cause the allele frequency of a small population to fluctuate
unpredictably



-Founder Effect, small sub population goes somewhere else

-Bottleneck Effect, natural disaster, sudden change in environment



Gene Flow - The addition or subtraction of alleles due to the movement of reproductively viable
individuals



Natural Selection - Alleles that enhance survival and reproduction increase over time

, Biological Species Concept - -if it can breed and produce offspring then it's the same species

-No gene flow



Morphological Species Concept - Morphology, body shape, structural features

-gene flow is unknown



Ecological Species Concept - Defines species based on "ecological niche"

Two species may maintain different ecological niches and/or behavior, and/or morphology yet
occasionally interbreed (gene flow)



What are the key features of natural selection? - genetic variation

over production of offspring

struggle for existence



Pre zygotic barriers - -no zygote is formed

-temporal isolation

-mechanical isolation

-gametic isolation



Post zygotic barriers - -Zygote is formed

-Hybrid Breakdown

-Reduced hybrid viability

-Reduced hybrid fertility



Sympatric speciation - separated by behavior



Allopatric Speciation - one population is physically separated from another

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