Traits Of Living Things

10 Questions | Total Attempts: 129

SettingsSettingsSettings
Traits Of Living Things

Compare and contrast the characteristics of learned behaviors and of inherited traits.   Reflect on a gene is and the role genes play in the transfer of traits.


Questions and Answers
  • 1. 
    In a classroom, 7 students have attached earlobes, and 21 have detached earlobes.  What fraction of students in the classroom have attached earlobes?
    • A. 

      1/7

    • B. 

      1/5

    • C. 

      1/4

    • D. 

      1/3

  • 2. 
    The order of the nitrogen bases in a DNA molecule determines an organism's
    • A. 

      Centromeres.

    • B. 

      Chromatids.

    • C. 

      Genes.

    • D. 

      Phophates

  • 3. 
    Which instrument do scientists use to observe DNA?
    • A. 

      Barometer

    • B. 

      Hand lens

    • C. 

      Microscope

    • D. 

      Thermometer

  • 4. 
    A change in DNA during replication is
    • A. 

      A hybrid.

    • B. 

      A mutation.

    • C. 

      A nucleotide.

    • D. 

      Reproduction.

  • 5. 
    Dogs have 78 chromosomes in each body cell.  How many chromosomes did it get from each of his parents (gamete)?
  • 6. 
    Which would be the BEST model of a DNA molecule?
    • A. 

      Stacks of wooden blocks

    • B. 

      A zipper that is slightly twisted

    • C. 

      Different sizes and colors of marbles

    • D. 

      A stretched metal spring toy

  • 7. 
    A brown rabbit has one gene for brown coloring (G) and one gene for white coloring (g).  A white rabbit has two genes for white coloring (g).  What are the possible gene combinations of their off spring?
    • A. 

      GG and gg

    • B. 

      GG and Gg

    • C. 

      Gg and gg

    • D. 

      GG and Gg or gg

  • 8. 
    Kevin observes a frog.  Which statement is NOT an observation?
    • A. 

      Its skin is smooth.

    • B. 

      It will live at least 15 years.

    • C. 

      Its long legs help it jump far.

    • D. 

      Its webbed feet help it swim.

  • 9. 
    Any trait that helps an individual to survive in its environment is a(n)
  • 10. 
    Body shape, haor and eye color, and the need for sleep are examples of manipulated traits.
    • A. 

      True

    • B. 

      False