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Bio 100 Class Notes- March 8th

by: Megan Hansel

Bio 100 Class Notes- March 8th Biol 100

Marketplace > Kansas > Biology > Biol 100 > Bio 100 Class Notes March 8th
Megan Hansel
GPA 3.78

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Weekly notes- March 8th
Principles of Biology
Laurel Haavik, Richard Williamson
Class Notes
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This 2 page Class Notes was uploaded by Megan Hansel on Sunday March 13, 2016. The Class Notes belongs to Biol 100 at Kansas taught by Laurel Haavik, Richard Williamson in Winter 2016. Since its upload, it has received 36 views. For similar materials see Principles of Biology in Biology at Kansas.


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Date Created: 03/13/16
March 8 2016 Most frequently missed questions on the test: All of the following mechanisms are used to regulate protein production except: A. Protein activation B. Protein breakdown C. DNA replication D. The breakdown of mRNA A woman with the type A blood has a child with type O blood. What is the woman’s genotype? a. Ibi b. Iai c. Ii d. IaIa e. IaIb Plant cells: a. Lack mitochondria and chloroplasts b. Lack mitochondria but have chloroplasts c. Have mitochondria but do not have chloroplasts d. Have mitochondria and chloroplasts A young man develops skin cancer that does not spread to any other tissues; the mutation responsible for the cancer arose in a single skin cell. If he and his wife (who does not have skin cancer) Answer is: None of the man’s children will inherit the mutation responsible for skin cancer Darwin: Darwin proposed the theory of natural selection as the mechanism of evolution based on three observations about nature. Which of the following were part of Darwin’s observations? a. Populations have the potential to produce more individuals than the environment can support. b. Individuals in some populations have varied characteristics c. Variation in individuals appears to be inherited d. All of the above Darwin’s theory of evolution by natural selection:  There are variations among animals within a species and those variations are passed on to offspring  The environment pretty much picks out which animals will and won’t fit  Differential survival o Adaption variations are passed on to offspring and become adaptions Microevolution changes at the gene level the change in gene pool Macroevolution actual changes in species Population: a group of individuals of the same species, living in the same place, at the same time Gene pool: all of the alleles of all the genes in a population Just because something is dominant that doesn’t mean it is going to be prominent Mutation= random process for adaption Natural selection= non-random for adaption Ultimate question= why does natural selection decided which trait is expressed? Proximate question= how did this trait become expressed in a species? Japanese cranes breed in spring and early summer. Choose the ultimate explanation: a. Breeding is most likely to be successful in spring and early summer b. Hormonal changes bring about breeding behaviors c. Breeding is triggered by the effect of increased day length on the birds’ photoreceptors Clicker question 3: what doe these results show? C. Predation on camouflaged models is reduced relative to non- camouflaged models in both habitats Eumelanin= dark hair pigment (brown to black) Pheomelanin= light hair pigment (blond to red)


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