The Power of Water
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The Power of Water

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Questions and Answers

Which subatomic particle in water's nucleus attracts electrons more strongly than the protons in the hydrogen nuclei?

  • Protons
  • Neutrons
  • Electrons (correct)
  • Positrons
  • What is the charge distribution in a water molecule?

  • Partially positive on both ends
  • Partially negative on both ends
  • Evenly distributed
  • Partially negative on one end and partially positive on the other (correct)
  • What is the term used for a molecule in which the charges are unevenly distributed?

  • Polar (correct)
  • Nonpolar
  • Ionic
  • Covalent
  • What is the attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge called?

    <p>Hydrogen bond</p> Signup and view all the answers

    What property of water allows it to attract other polar molecules?

    <p>Hydrogen bond</p> Signup and view all the answers

    What is biotechnology primarily concerned with?

    <p>The use and application of living things and biological processes</p> Signup and view all the answers

    Which of the following is an example of a transgenic organism?

    <p>A bacteria engineered to produce human insulin</p> Signup and view all the answers

    What benefit do genetically modified crops provide in relation to chemical pesticides?

    <p>They can reduce or eliminate the need for chemical pesticides</p> Signup and view all the answers

    What is the primary purpose of human genetic screening?

    <p>To identify genetic variations and risks for diseases</p> Signup and view all the answers

    What ethical concern is highlighted regarding genetic screening?

    <p>It could lead to discrimination based on genetic traits</p> Signup and view all the answers

    How have domestic plants and animals primarily been developed over time?

    <p>Through centuries of genetic manipulation via selective breeding</p> Signup and view all the answers

    What is a primary benefit of transgenic sheep and cows?

    <p>They can generate human antibodies and proteins</p> Signup and view all the answers

    What potential issue arises from the use of genetically modified foods?

    <p>Their long-term effects are not fully understood</p> Signup and view all the answers

    Study Notes

    Biotechnology

    • Biotechnology encompasses the application of living organisms and their processes for various purposes.
    • It encompasses diverse products, processes, and techniques.
    • Examples include using microorganisms to produce bread and cheese.
    • Biotechnology plays a crucial role in exonerating wrongly convicted individuals through DNA testing.
    • It holds promise for addressing modern challenges, such as finding alternative energy sources like algae.
    • Domesticated plants and animals are products of centuries of genetic manipulation through selective breeding.
    • Genetic manipulation involves transferring genetic information between organisms, even those from different species.

    Transgenic Organisms

    • Transgenic organisms are created by introducing genes from a different species or altering their own genes.
    • Examples include transgenic bacteria producing human insulin for diabetes treatment and transgenic sheep and cows producing human antibodies and proteins.
    • Genetically modified foods are a form of transgenic organisms.

    Benefits of Genetically Modified Foods

    • Potential benefits include increased nutrient content, yield, and insect resistance in crops.
    • Insect-resistant crops could significantly reduce or eliminate the need for chemical pesticides.
    • However, the long-term impacts of genetically modified crops remain unclear.

    Human Genetic Screening

    • Human genetic screening involves analyzing an individual's genes to identify genetic variations.
    • It can predict potential risks for certain diseases or genetic disorders in individuals or their offspring.
    • This technique enables early diagnosis of conditions allowing for treatment before illness onset.
    • However, ethical concerns arise, particularly regarding the possibility of using genetic screening to select desired characteristics in children.

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    Test your knowledge on the unique properties of water and how its polarity affects its role as a solvent. Explore the structure of water and its impact on various properties.

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