Download Review Questions 1. A rabbit`s fur can be all different colors. The

Review Questions
1. A rabbit’s fur can be all different colors. The different forms of a rabbit’s fur gene are known as
alleles. If a male and female rabbit had genotypes of Gg and GG what are the possible
genotypes for their offspring? (G=Gray and g= white) Tell the possibility of their offspring being
homozygous dominant, homozygous recessive, and heterozygous.
a. GG= 50% homozygous dominant
b. Gg= 50% heterozygous
2. List the levels of organization from the lowest to the highest level.
a. Atom, elements, molecules, compounds, cell, tissue, organ, organ system, and
organism
3. What are the 3 parts of Cell Theory? Write a hypothesis to test one of the parts.
a. All living things are composed of cells
b. Cells are the basic units of structure and function in living things
c. All cells are produced from other cells.
d. If life is the most basic unit of life than the component parts of cells would not be
living outside of a cell.
4. What is homeostasis? How do organisms maintain homeostasis?
a. Homeostasis- Maintenance of internal stable conditions that are necessary for life
functions
b. Organisms maintain homeostasis by removing waster, getting and using energy from
food and reproduction of cells.
5. The genotype HH is homozygous dominant.
6. List and describe the three parts of the Cell Cycle
a. Interphase: cells grow, makes a copy of its DNA, and prepares to divide into two cells
b. Mitosis: the cell’s nucleus divides into two new nuclei and one set of DNA is
distributed into each daughter cell
c. Cytokinesis: the process of cell division
7. When personal feelings have entered into a decision or conclusion, you are being subjective.
8. Make 3 objective observations about the classroom.
a. There is one teacher.
b. The desk tops are black.
c. There are 29 lights in the classroom.
9. Which organelles are only found in plant cells? Describe each organelles function.
a. Cell wall- rigid layer that surrounds the cells of plants
b. Chloroplast- carries out photosynthesis. It captures energy from sunlight and changes
it to form of energy cells can use in making food.
10. What is natural selection?
a. Individuals that are better adapted to their environment are more likely to survive ,
reproduce, and pass on the advantageous traits.
11. What are the factors that affect natural selection?
a. Overproduction
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b. Variation
c. Competition
d. Selection
Henry is observing hamsters for his science project. He keeps the hamsters in metal cages and
feeds the hamsters once a day. The hamsters have unlimited access to water. What parts of
Henry’s experiment cannot be explained by the Cell Theory?
a. Metal cages
b. Water
What are 3 examples of times when scientific knowledge has changed due to new evidence and
research?
a. Galileo wrote a book proving the sun is the center of the universe not the Earth. This is
the heliocentric model.
b. Rachel Carson performed experiments determining that DDT, a pesticide, was
softening the shells of birds and caused a decline in the bird populations.
c. Jane Goodall’s observations revealed that chimpanzees use tools, have human like
behavior, have personalities, and are omnivores.
What happens if during DNA replication the new strand of DNA has been mutated or not copied
correctly?
a. The cell that the DNA is in may not function properly; the cell could die, and if on a
large scale could disrupt homeostasis.
What are the 4 nuclei acids that make up DNA? What organelle “reads” the stand of DNA and
makes a protein?
a. Adenine, thymine, cytosine, and guanine
b. Ribosomes