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SBI3U Unit 1 study notes
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- 1LESSON 1 - What is diversity?Diversity is a product of the process of evolution, where all life shares a common ancestor.
- 2LESSON 1 - What is natural selection?The ability to adapt to a specific place and evolve accordingly.
- 3LESSON 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.
- 4LESSON 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.
- 5LESSON 1 - What was the orgin of species a result of?It was the result of evolution by natural selection.
- 6Haploid (n)Half the genetic information (23 chromosomes)
- 7Diploid (2n)Complete set of genetic information (46 chromosomes)
- 8CentromereMiddle region of chromosome, attracts spindle fibres
- 9CodominanceOccurs when both alleles are fully expressed
- 10Incomplete DominanceNot all alleles are fully dominant or recessive
- 11—
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- Evolution and theories behind it..
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