Question 1

Which of the following best describes the primary purpose of mitosis in multicellular organisms?

Accepted Answer

To generate identical daughter cells for growth and tissue repair

Question 2

During which phase of mitosis do the sister chromatids separate and move toward opposite poles of the cell?

Accepted Answer

Anaphase

Question 3

A scientist observes a cell with chromosomes aligned at the center of the cell. Which mitotic phase is being observed?

Accepted Answer

Metaphase

Question 4

If a cell starts mitosis with 12 chromosomes, how many chromosomes will each daughter cell have after mitosis is complete?

Accepted Answer

12

Question 5

Which of the following equations correctly represents the chromosome number before and after mitosis in a diploid cell?

Accepted Answer

$$2n \rightarrow 2n$$

Question 6

A patient has a wound that is healing rapidly. Which cellular process is most directly responsible for the increase in new skin cells at the wound site?

Accepted Answer

Mitosis

Question 7

Which of the following events does NOT occur during mitosis but occurs during interphase?

Accepted Answer

DNA replication

Question 8

A mutation causes a cell to skip the metaphase checkpoint. What is the most likely consequence?

Accepted Answer

Chromosomes may not be properly aligned, leading to unequal chromosome distribution

Question 9

Which of the following best explains why mitosis is considered a form of asexual reproduction?

Accepted Answer

It results in genetically identical offspring

Question 10

In a laboratory experiment, a student observes a cell with a clearly visible nuclear envelope and chromosomes that are not yet condensed. Which stage is the cell most likely in?

Accepted Answer

Interphase

Question 11

Which of the following is a key difference between mitosis in plant cells and animal cells?

Accepted Answer

Plant cells form a cell plate during cytokinesis, while animal cells form a cleavage furrow

Question 12

A researcher treats cells with a drug that prevents spindle fiber formation. Which stage of mitosis will be directly affected?

Accepted Answer

Metaphase

Question 13

Which of the following best describes the role of the centromere during mitosis?

Accepted Answer

It is the region where spindle fibers attach to separate sister chromatids

Question 14

A cell is observed to have two distinct nuclei forming, but the cytoplasm has not yet divided. Which stage is this cell in?

Accepted Answer

Telophase

Question 15

Which of the following scenarios best illustrates the importance of mitosis in maintaining genetic stability?

Accepted Answer

A lizard regrows its tail after injury, and the new cells have the same chromosome number as the original cells

Question 16

If a cell fails to complete cytokinesis after mitosis, what will be the result?

Accepted Answer

A single cell with two nuclei

Question 17

Which of the following is the correct sequence of mitotic phases?

Accepted Answer

Prophase, Metaphase, Anaphase, Telophase

Question 18

A cell with a mutation in the gene controlling the G2 checkpoint proceeds to mitosis with damaged DNA. What is a likely consequence?

Accepted Answer

The daughter cells may inherit mutations, potentially leading to cancer

Question 19

Which of the following best explains why mitosis is essential for the survival of multicellular organisms?

Accepted Answer

It allows for growth, tissue repair, and maintenance by producing identical cells

Question 20

A cell in your body undergoes mitosis and produces two daughter cells. If each daughter cell contains 46 chromosomes, how many chromosomes did the original cell have before mitosis began?

Accepted Answer

46

Mitosis: Cell Division in Eukaryotes

Guida di studio - Domande di pratica

Study guide - Flashcard