What Is DNA? Teacher Sheet

What Is DNA? Teacher Sheet Photo Credit: Clipart.com


Students have been learning about the human cell and DNA. Through the Tour of the Basics from Learn Genetics, they will explore the role of DNA in specifying cell function in the human body. They should answer the questions on the What Is DNA? student sheet This sheet provides some answers to the questions.

  1. What type of cells does the interactive explore in the human body? What function do they support?
      The interactive explores the cells of the inner ear involved in the function of hearing.
  2. What is the largest structure inside the cell?
      The nucleus is the largest structure.
  3. Why is the nucleus an important cell structure?
      It stores the information and instructions for a living organism to grow and live.
  4. Based on the image in the interactive, are there other structures inside the cell besides the nucleus?
  5. How many chromosomes are found within the human cell nucleus?
      There are 46 chromosomes in the human cell nucleus.
  6. What is the relationship between chromosomes and DNA?
      DNA is the molecule that makes up the larger chromosome structures.
  7. What do the initials DNA stand for?
      They stand for Deoxyribonucleic acid.
  8. What type of bond exists between the bases?
      Hydrogen bonds exist between the bases.
  9. What is the backbone of the double helix?
      Sugar phosphate is the backbone.
  10. What are the four letters of bases and how are they paired?
      The four letters are A, T, C, and G. A is paired with T and C is paired with G.
  11. What do the base letters stand for?
      A is for adenine, T is for thymine, C is for cytosine, and G is for guanine.
  12. What are genes?
      They are a “sentence” of letters in a DNA strand that tell the cell to make proteins.
  13. What do proteins do?
      They enable the cell to perform specific functions.
This teacher sheet is a part of the From Cell to DNA lesson.

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