Intro to Cell Cycle

Multiple Choice

This part of the cell cycle is best described as the process that -

• Duplicated the DNA

• Completes cell division

• Maintain genetic homeostasis

• Synthesizes new molecules

Multiple Choice

True or False: Cancer is basically an inability of the body to control the speed at which cells divide.

• True

• False

Multiple Choice

How is cancer related to cell division?

• Mutations can cause uncontrolled cell division which causes cancerous cells to spread rapidly and take nutrients from healthy cells.

• Cancer stops cell division from happening.

• Cell division causes viruses that spread around the body and cause cancer.

• Cancer is not related to cell division.

Reorder

Reorder the following phases of the Cell Cycle:

• G₁-Phase

• S-Phase

• G₂-Phase

• Mitosis

• Cytokinesis

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Why is cell division important for the human body?

• to increase the speed of aging

• to cause wounds and damages

• to repair wounds and damages

• to make more energy

Multiple Choice

This diagram shows the cell cycle.

Which of the following activities occur in the S phase?

• Replication of the DNA
• Growth of the cell
• Formation of the mitotic spindle
• Breakdown of the nuclear membrane

Multiple Choice

The diagram illustrates part of the process of DNA replication. What is occurring

at point A?

• DNA helicase is unwinding a segment of DNA into two separate strands.

• DNA polymerase is proofreading the new DNA strand

• DNA helicases are exchanging sections, which will then be rejoined.

• DNA polymerase is adding new nucleotides to the 3′ end of the RNA primase.

Multiple Choice

Critically evaluate the role of homologous chromosomes in maintaining genetic stability during meiosis. Discuss how errors in their separation can affect the organism.

• Homologous chromosomes are irrelevant to genetic stability and errors in separation have minimal impact.

• Homologous chromosomes ensure accurate DNA replication; errors in their separation can lead to genetic disorders like trisomies.

• They prevent genetic recombination, so errors increase genetic diversity without negative effects.

• Their role is purely structural, affecting only the physical appearance of chromosomes, not genetic content.

Multiple Choice

What two characteristics tell you the image is in interphase?

• The cell still has a nuclear membrane and the DNA is relaxed in the form known as chromatin

• The cell's nuclear membrane is disappearing and the DNA is condensed in the form known as chromosomes

Multiple Select

Which features of cells could indicate cancer (select all that apply)?

• variable shape and size of cell

• arranged in an organized manner

• cells have large, variably shaped nuclei

• uniform size and shape of cells

Reorder

Reorder the following

• Gap 1

• Synthesis

• Gap 2

• Mitosis

• Cytokinesis

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident