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Reading Genes

Reading Genes. October 11, 2019 - Page 47. Essential Question . What leads to variation in a population?. Definitions to Remember. Feature - An inheritable characteristic (a category - hair color) Trait - An expression of a feature (a fact - blue eyes)

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Reading Genes

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  1. Reading Genes October 11, 2019 - Page 47

  2. Essential Question What leads to variation in a population?

  3. Definitions to Remember Feature - An inheritable characteristic (a category - hair color) Trait - An expression of a feature (a fact - blue eyes) Variation - All the traits that appear in a population together

  4. Definitions from Yesterday Genome - The entirety of genetic information in your cells Chromosome - The bodies in your nuclei that contain the information (DNA wrapped around protein) DNA - The twisted ladder molecule that carries genetic information. A recipe for proteins.

  5. More Definitions from Yesterday Protein - A molecule that makes up your body and enables it to do all the things it needs to do Gene - A piece of DNA that codes for one protein Allele - One half of a gene - either the half from a mother or a half from a father

  6. Larkey Features and Traits

  7. New Words Genotype - All the genes of an organism put together - what its DNA says Phenotype - All the traits of an organism put together - how it looks

  8. Alleles and Genes If an allele is dominant, it will always show up as a trait If an allele is recessive, it only shows up when both alleles in the gene are recessive A gene with two identical alleles are homozygous A gene with two different alleles are heterozygous

  9. So What Does That Mean? Note: Fur is a case of incomplete dominance. Neither side wins

  10. Let’s Draw a Larkey!

  11. Now It’s Your Turn Flip a coin Heads is Big A (short legs), Tails is Little a (long legs) Flip a second time for A Now Flip twice for E, F, and T You should have eight flips when you’re done - this is your larkey’s genotype Now draw its phenotype

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