Biology 1406 - Chapter 12

14 Questions | Total Attempts: 95

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Chapters Of Biology Quizzes & Trivia

BIOLOGY 1406 CHAPTER 12.


Questions and Answers
  • 1. 
    Starting with a fertilized egg, a series of five cell divisions would produce in early embryo with how many cells?
    • A. 

      4

    • B. 

      8

    • C. 

      16

    • D. 

      32

  • 2. 
    If there are 20 chromatids in a cell, how many centromeres are there?
    • A. 

      10

    • B. 

      20

    • C. 

      40

    • D. 

      5

  • 3. 
    Chromosomes first become visible during which phase of mitosis?
    • A. 

      Metaphase

    • B. 

      Telophase

    • C. 

      Anaphase

    • D. 

      Prophase

  • 4. 
    Nerve and muscle cells are in _________ phase.
    • A. 

      G0

    • B. 

      G1

    • C. 

      S

    • D. 

      Mitotic

  • 5. 
    Why do chromosomes coil during mitosis?
    • A. 

      To increase their potential energy.

    • B. 

      To allow chromosomes to move without becoming entangled and breaking

    • C. 

      To allow chromosomes to fit within the nuclear envelope

    • D. 

      To allow the sister chromatids to remain attached.

  • 6. 
    What are the purposes of mitotic cell division for multicellular organisms? List three
  • 7. 
    What is the concept of genome?
  • 8. 
    Define chromatin. How is it different from the concept of DNA?
  • 9. 
    What is the difference between chromatin and chromosome in eukaryotic cells?
  • 10. 
    Chromosome number is typically an odd number. True or False?
  • 11. 
    In cell division, each DNA must be duplicated and each chromosome must be duplicated. True or False?
  • 12. 
    What happens in cytokinesis? How is the cytokinesis in animal cells different from that in plant cells?
  • 13. 
    What are mitotic spindles made up of? (chemical nature)
  • 14. 
    Does mitotic cell division generate genetic diversity?
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