SBI3U Unit 1 study notes

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Evolution and theories behind it..
Cassandra Bisson
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Cassandra Bisson
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LESSON 1 - What is diversity? Diversity is a product of the process of evolution, where all life shares a common ancestor.
LESSON 1 - What is natural selection? The ability to adapt to a specific place and evolve accordingly.
LESSON 1 - What did Charles Darwin notice on his theory of evolution? 2 Things noticed, a huge diversity of species on earth, and species living far apart on the globe exhibited similar traits.
LESSON 1 - Who helped Charles Darwin develop his theory? He did it with the help of Carl Linnaeus’s system of classifying organisms, called binomial nomenclature.
LESSON 1 - What was the orgin of species a result of? It was the result of evolution by natural selection.
Haploid (n) Half the genetic information (23 chromosomes)
Diploid (2n) Complete set of genetic information (46 chromosomes)
Centromere Middle region of chromosome, attracts spindle fibres
Codominance Occurs when both alleles are fully expressed
Incomplete Dominance Not all alleles are fully dominant or recessive
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