Scientific models always(1 point)

Question

Responses

represent old information.
represent old information.

have limitations.
have limitations.

are complete.
are complete.

require memorization.Scientific models always(1 point)
Responses

represent old information.
represent old information.

have limitations.
have limitations.

are complete.
are complete.

require memorization.

The following diagram shows the mitotic process.

A parent cell is shown on the left. The nucleus and chromosomes are labeled. An arrow points to two daughter cells on the right. The arrow is labeled DNA replication, then mitosis.

What is a limitation of this diagram?

(1 point)
Responses

It does not show senescence. It only shows the interphase portion of mitosis.
It does not show senescence. It only shows the interphase portion of mitosis.

It does not show that mitosis creates more than two daughter cells. It only shows a polyploidy cell in mitosis.
It does not show that mitosis creates more than two daughter cells. It only shows a polyploidy cell in mitosis.

It does not show all phases of mitosis.
It does not show all phases of mitosis.

It does not show the final result of mitosis.

What is a limitation of a pictorial-only model of mitosis that shows detailed images of the different phases of the process?(1 point)
Responses

The division of cells are not shown in models of mitosis.
The division of cells are not shown in models of mitosis.

It does not name the different phases of mitosis.
It does not name the different phases of mitosis.

It does not provide any information about what happens during mitosis.
It does not provide any information about what happens during mitosis.

Chromosomes are not shown in models of mitosis.
Use the image to answer the question.

The cell cycle begins with interphase, where the cell takes approximately 10 hours to grow. If it passes the G1 checkpoint, the DNA duplication starts and goes on for approximately eight hours. The cell further grows for approximately four hours. After passing the G2 checkpoint, the process of mitosis takes place, which takes approximately one to two hours. The phases during mitosis are prophase, metaphase, anaphase, telophase, and cytokinesis. After cytokinesis, the daughter cells enter interphase, and the cycle gets repeated.

According to the figure, mitosis occurs after which stage in the cell cycle?

(1 point)
Responses

S
S

M
M

G1
G1

G2

Which model most accurately represents the process of mitosis? (1 point)
Responses

A model showing the cell before mitosis, then after mitosis.
A model showing the cell before mitosis, then after mitosis.

A model listing the four phases of mitosis without showing what happens inside the cells.
A model listing the four phases of mitosis without showing what happens inside the cells.

A model illustrating the splitting of the cell in cytokinesis.
A model illustrating the splitting of the cell in cytokinesis.....

Answer 1

Let's address each question and response option step by step:

1. Scientific models always:

   • Represent old information. (Incorrect)
   • Have limitations. (Correct)
   • Are complete. (Incorrect)
   • Require memorization. (Incorrect)

   Correct Response: Have limitations. (Scientific models are simplifications and cannot capture every detail of a phenomenon.)

2. What is a limitation of this diagram?

   • It does not show senescence. It only shows the interphase portion of mitosis. (Incorrect)
   • It does not show that mitosis creates more than two daughter cells. It only shows a polyploidy cell in mitosis. (Incorrect)
   • It does not show all phases of mitosis. (Correct)
   • It does not show the final result of mitosis. (Incorrect)

   Correct Response: It does not show all phases of mitosis. (The diagram likely simplifies the process and doesn't include all phases.)

3. What is a limitation of a pictorial-only model of mitosis that shows detailed images of the different phases of the process?

   • The division of cells are not shown in models of mitosis. (Incorrect)
   • It does not name the different phases of mitosis. (Incorrect)
   • It does not provide any information about what happens during mitosis. (Correct)
   • Chromosomes are not shown in models of mitosis. (Incorrect)

   Correct Response: It does not provide any information about what happens during mitosis. (A pictorial model can show phases but may lack explanatory details.)

4. According to the figure, mitosis occurs after which stage in the cell cycle?

   • S (Incorrect - DNA duplication occurs here)
   • M (Incorrect - this is the stage itself)
   • G1 (Incorrect - this is the first gap phase before DNA synthesis)
   • G2 (Correct - this is the stage where the cell prepares for mitosis)

   Correct Response: G2 (Mitosis follows the G2 phase after DNA synthesis and cell growth.)

5. Which model most accurately represents the process of mitosis?

   • A model showing the cell before mitosis, then after mitosis. (Correct - this presents a clear before-and-after context)
   • A model listing the four phases of mitosis without showing what happens inside the cells. (Incorrect - lacks detail)
   • A model illustrating the splitting of the cell in cytokinesis. (Incorrect - while important, it does not depict the entire mitotic process)

   Correct Response: A model showing the cell before mitosis, then after mitosis. (This provides a clear visual representation of the process.)

If you have any further questions or require more detail on any topic, feel free to ask!