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Decoding Genetics: Unveiling the Secrets of Chromosomes and Traits

Explore the fascinating world of genetics and chromosomes in this engaging video. Learn about genes, inherited and acquired traits, genotype, phenotype, and the role of sex cells in passing on genetic information. Discover what makes you unique and how your DNA shapes your physical features.

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Decoding Genetics: Unveiling the Secrets of Chromosomes and Traits

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  1. Making a Face How chromosomes make us, us!

  2. What makes you, you? • Do now: • On your index card: • What are genes? • Where are genes located?

  3. http://www.youtube.com/watch?v=_hRM11Bv7BA

  4. Vocabulary • Gene • Chromosomes • Inherited Traits • Acquired Traits • Genotype • Phenotype • Sex Cells

  5. Gene • Piece of DNA that codes for a specific trait

  6. Chromosomes • DNA that is coiled up so that it is easier to move from cell to cell.

  7. Inherited traits • Features that are only passed down to offspring through DNA. Cannot be changed

  8. Acquired Traits • Features that are not passed through DNA • Ex. A scar on your leg or a new hair cut

  9. Which are inherited and which are acquired? • Hair color • Eye Color • Hair style • Callus on your finger • Nose shape • Bigger muscles from working out • Scar on your arm • Ear size

  10. Genotype • The combination of genes you receive

  11. Phenotype • The features that result from your genes Red Red White

  12. Sex cells (gametes) • Sperm cells and egg cells only have half of the DNA of our regular cells • When they come together, they will make a complete set of chromosomes for the new offspring • ½ DNA from mom + ½ DNA from dad

  13. Make a Face • Step 1 • Cut out your chromosomes and fold each in half lengthwise. Be careful to cut on the correct lines. • Follow Mr. Tran’s Example! Cut the highlighted parts. • Glue the halves shut with a glue stick • Place chromosomes in the plastic bags provided and label with your name and period. • DO NOT LOSE YOUR CHROMOSOMES • They will be used to make the unique combination of DNA for your child

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