Biology CUA 5: Cell Cycle and Mutations REVIEW

The images show a cell in various phases of mitosis. Which of these lists the phases in the order that they occur in mitosis?

• Z, Y, X, W

• X, W, Z, Y

• Z, X, W, Y

• X, Z, Y, W

The diagram shows a process that occurs during the development of an organism. Which statement explains how the different cell types in the image are formed?

• Each cell type uses its own unique replication process.

• Each cell type expresses different genes at different times.

• Each cell type contains a different part of the original DNA.

• Each cell type has different enzymes to replicate genetic material.

Which of these properties is found only in cancer cells?

• Unregulated cell division

• Regulated gene expression

• Response to signals outside of the cell

• Presence of mitochondria

Sometimes cells can begin to grow abnormally. As a result the cell cycle being disrupted, the cells grow and divide uncontrollably. This results in ...

• Influenza

• Cancer

• HIV

• Conjunctivitis

A model of the cell cycle is shown below. Which of the following are part of interphase? Choose all that apply.

• G1 Phase

• S Phase

• G2 Phase

• M Phase

Cell Differentiation is important because:

• Different functions require different structures

• It creates diversity on Earth

• It creates diversity within your body

• All choices are correct

Different types of mutations can occur in DNA. The diagram represents a type of mutation. Which statement describes the mutation in the diagram?

• A silent mutation results in the insertion of a different amino acid.

• A substitution occurs with the adenine base.

• A deletion of a cytosine base occurs.

• A base is inserted into one strand of the DNA.

A cell undergoing a biological process is shown. Which process occurs between Step 2 and Step 3 and creates more genetic diversity in the resulting cells?

• Chromosome nondisjunction

• Genome replication

• Crossing over

• Chromosomal deletion

A diagram of the cell cycle is shown below. Identify the stage of the cell cycle where DNA is duplicated (hint: synthesis).

• S

• G1

• G2

• M

A mutation that occurs in the gametes of an organism will most likely be transferred to which of the following?

• The siblings of the organism

• The offspring of the organism

• The other organisms living nearby

• The mating partner of the organism