Chapter 8 Final Study Guide

10 Questions  I  By Smileyvic
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This is chapter 8 final study guide for biology.

  
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  • 1. 
    Which of the following is not a function of mitosis in humans?
    • A. 

      Repair of wounds

    • B. 

      Growth

    • C. 

      Production of gametes from diploid cells

    • D. 

      Replacement of lost or damaged cells


  • 2. 
    Why is it difficult to observe individual chromosomes during interphase?

  • 3. 
    A biochemist measures the amount of DNA in cells growing in the laboratory. The quantity of DNA in a cell would be found to double
    • A. 

      Between prophase and anaphase of mitosis

    • B. 

      Between the G1 and G2 phases of the cell cycle

    • C. 

      During the M phase of the cell cycle

    • D. 

      Between prophase I and prophase II of meiosis


  • 4. 
    Which two phases of mitosis are essentially opposites in terms of changes in the nucleus?

  • 5. 
    A chemical that disrupts microfilament formation would interfere with
    • A. 

      DNA replication

    • B. 

      Formation of the mitotic spindle

    • C. 

      Cleavage

    • D. 

      Crossing over


  • 6. 
    If an intenstinal cell in a dog contains____chromosomes, a dog sperm cell would contain ____ chromosomes.

  • 7. 
    A micrograph of a divid cell from a mouse shows 19 chromosomes, each consisting of two sister chromatids. During which stage of meiosis couldthis picture have been taken?

  • 8. 
    Tumors that remain at their site of orgin are called_____ while tumors from which cells migrate to other body tissue are called_____.

  • 9. 
    A fruit fly somatic cell contains eight chromosomes. This means that  ______ different combinations of chromosomes are possible in its gametes.

  • 10. 
    Although, nondisjunction is a random event, there are many more individuals with an extra chromosome 21, which causes Down syndrome, than individuals with an extra chromosome 2 or chromosome 16. Propose an explantion for this.

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