Understanding DNA and Genetics
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Questions and Answers

What is the chemical that is sometimes described as the blueprint of life?

  • DNA (correct)
  • Carbohydrate
  • RNA
  • Protein
  • Where is DNA found in a cell?

  • Endoplasmic Reticulum
  • Cytoplasm
  • Nucleus (correct)
  • Mitochondria
  • What is the term for the observable characteristics or appearance of an organism?

  • Genotype
  • Karyotype
  • Allele
  • Phenotype (correct)
  • During cell division, what are the visible strands of DNA known as?

    <p>Chromatids</p> Signup and view all the answers

    What is the section of DNA responsible for a particular trait called?

    <p>Gene</p> Signup and view all the answers

    How many pairs of chromosomes do normal human body cells have?

    <p>23 pairs</p> Signup and view all the answers

    Study Notes

    DNA and Genetics

    • DNA (Deoxyribonucleic acid) is sometimes described as the blueprint of life.
    • DNA is found in the nucleus of a cell.

    Genetic Traits

    • The term for the observable characteristics or appearance of an organism is known as the phenotype.

    Cell Division

    • During cell division, the visible strands of DNA are known as chromosomes.

    Genes and Traits

    • A section of DNA responsible for a particular trait is called a gene.

    Human Chromosomes

    • Normal human body cells have 23 pairs of chromosomes.

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    Description

    Explore the basics of DNA, chromosomes, and genetic characteristics in living organisms. Learn about the blueprint of life and how DNA determines various traits.

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