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Human Biotechnology
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8th grade
Science
benfordd
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  • Slide 1
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    Human Biotechnology

    In this lesson, you will review how DNA technology is used to modify an organism's DNA.

  • Slide 2
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    Modern genetics uses DNA technology.

    • Changes in DNA can change an organism.

    • Random changes in DNA may introduce new traits into an organism.

    • Over time, certain traits may become more common in one group of organisms as they interact with the environment and each other.

  • Slide 3
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    Selective Breeding

    • The process of selecting and breeding parent organisms to pass on particular traits to the offspring.

    • Downfall- leads to lack of genetic variation

    • Example- crops, agriculture

  • Question 4
    30 seconds
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    Q.

    Selective breeding is...

    answer choices

    a process to create an organism with desired traits from parents with those desired traits

    natural method of producing offspring with desired traits

    creating a new species

    making organisms reproduce during times of stress

  • Question 5
    30 seconds
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    Q.

    An example of selective breeding is

    answer choices

    a dog breeder mating 2 dogs to make more dogs

    a farmer grows bees to pollinate the plants on his farm

    a person pollinates 2 white rose plants to only create white roses

  • Question 6
    30 seconds
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    Q.

    One problem with selective breeding is

    answer choices

    creating a new species

    gene variety is lost

    extinction of a species

  • Slide 7
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    Genetic engineering

    • Used to introduce new traits into an organism

    • Produce medicines and other products

    • Identify individuals

    • Clone genes as well as organisms

    • Sequence the genome of an organism

  • Question 8
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    Q. Genetic engineering has been used to produce
    answer choices
    medicines.
    food animals.
    improved crops.
    all of these.
  • Question 9
    30 seconds
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    Q.

    What are genetically modified (GM) organisms and GM foods?

    answer choices

    Foods or organisms with better taste

    Foods or organisms grown in the USA, only

    Foods or organisms with DNA modified in a way that doesn't occur naturally

    Food and organisms that have been injected with hormones

  • Slide 10
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  • Question 11
    Ungraded
    180 seconds
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    Q.

    What are some risks and benefits associated with using genetic engineering in food crops?

  • Question 12
    Ungraded
    45 seconds
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    Q.

    How do you rate your understanding of DNA technology to change an organism's genes?

    no correct answer

    I don't get it. I might need help.

    I get some of it. I might need help.

    I get it. I can do it by myself.

    I've got it and I can teach it to a friend.

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