Traits Of Living Things
10 Questions
| Total Attempts: 129
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
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