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How do We Make Our World “better?” Biology Standard 5c and d Modifying our Living World with DNA!

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Presentation on theme: "How do We Make Our World “better?” Biology Standard 5c and d Modifying our Living World with DNA!"— Presentation transcript:

1 How do We Make Our World “better?” Biology Standard 5c and d Modifying our Living World with DNA!

2 AKA Mating By choosing the “best” individuals of a species and breeding them, you can get the “best” offspring. Breeding

3 Allowing those orgs w/ desired characteristics (DNA) to produce next gen. Based on phenotype (what animal looks like) Genotype (DNA) codes for phenotype. Selective Breeding

4 Selective Breeding: Super Cow!

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6 Selective Breeding Progression of Corn over time

7 Hybridization Crossing dissimilar individs to bring together best of both orgs. Can make orgs disease resistant; sterile!

8 Hybridization Liger

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10 Hybridization: Zorse

11 Hybridization: Zedonk

12 Hybridization: Prizzly Bear

13 Hybridization: Tomacco

14 Hybridization: Wolf/Dog

15 Inbreedin g Continued breeding of individs with similar characteristics. Risky! Genetic defects! Too many recessive alleles (not dominant traits) Hemophilia: The Royal Disease: Queen Victoria X linked Hemophilia

16 Royal Pedigree

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18 No Sex with Your Siblings! Inbreeding is dangerous b/c when 2 individs mate that are genetically similar, recessive disorders are kept inside the family and are passed to offspring.

19 Catalina Bison


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