Term
Describe the structure using the terms:
Double Helix
Sugar-Phosphate Backbone
Nitrogenous bases,Complementary base parings (A-T G-C) |
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Definition
The structue of dna is like a twisted ladder. The shape is a double helix. The sugar phosphate backbone is the runs of the ladder. |
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Term
What role does dna have in evolution |
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Definition
dna holds all gentic code for the developement of an organism |
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Definition
Change in DNA sequence/pattern that affects genetic information |
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Definition
Individuals that are better suited to their environment will survive and reproduce successfully |
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Definition
The change in the frequency of a gene |
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Term
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Definition
The transfer of genes to one population to another |
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Definition
Any mating system that the males are not randomly assigned to females |
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Term
Explain Convergent Evolution
Give an example |
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Definition
the process in which unrelated organisms independently evolve, the structures are different but the function are the same
The wings of insects,birds,bats
the fuction is the same but the structure is different |
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Term
Divergent Evolution
Give an example |
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Definition
accumulation of differences between groups which can lead to the formation of a new species
Ex. Wolly Mammoth -----Elephant |
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Term
Speciation
Give an example *Do* |
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Definition
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Term
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Definition
When organisms can keep an stable internal environment |
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Term
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Definition
A 2 word naming system, scientific name always written in Italics.
1st word capilitaized, 2nd word lower-cased |
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Term
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Definition
Bacteria
Protists
Fungi
Pantae
Animalia |
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Term
Taxonomy Levels:
Kinky Ppeople Can Often Find Good Shoes |
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Definition
Kingdom, Phylum, Class, Order, Family, Genus, species |
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Definition
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Term
Compare Gradual Change
to
Puncutated Equilibrium Model |
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Definition
Gradual: Species slowly, but continusly evolve over time
Equilibrium: Species stay the same for awhile, and then rapidly change |
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Term
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Definition
One giraffe would keep streching its neck out to reach the leaves higher up on the trees. Then when it mates and reproduces the off-spring will have long necks |
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Term
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Definition
Because the leaves that Giraffe eat are high up in the trees, the longer Giraffes will get the most food, and so when it reporduces the genes for long necks will be passed on to the off-spring |
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Term
Evolutionary Relationships: |
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Definition
Method of grouping oraganisms together, according to their evolutionary history |
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Definition
Structures that have different mature forms in different organisms, but develope from the same Embronic tissues |
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Term
Embryological Relationships |
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Definition
comparing the embryo with other animals that share the same habitat to help taxonomists classify organisms |
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Term
Biochemical Relationships: |
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Definition
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