Question 1

Which of the following best describes the difference between haploid (n) and diploid (2n) cells?

Accepted Answer

Haploid cells contain one set of chromosomes, while diploid cells contain two sets.

Question 2

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 3

What is the primary function of the mitotic spindle during mitosis?

Accepted Answer

To separate sister chromatids

Question 4

Which structure is responsible for attaching spindle fibers to chromosomes during mitosis?

Accepted Answer

Kinetochore

Question 5

In animal cells, cytokinesis is accomplished by the formation of which structure?

Accepted Answer

Cleavage furrow

Question 6

Which of the following best describes the process of cytokinesis in plant cells?

Accepted Answer

A cell plate forms from vesicles, eventually developing into a new cell wall.

Question 7

If a diploid cell with 2n = 8 chromosomes undergoes mitosis, how many chromosomes will each daughter cell have?

Accepted Answer

$$2n = 8$$

Question 8

Which phase of mitosis is characterized by the alignment of chromosomes along the metaphase plate?

Accepted Answer

Metaphase

Question 9

A researcher observes a cell with chromosomes being pulled toward opposite poles. Which phase is this?

Accepted Answer

Anaphase

Question 10

Which of the following events occurs during telophase of mitosis?

Accepted Answer

Nuclear envelopes reform around the chromosomes.

Question 11

A mutation prevents the formation of the contractile ring in animal cells. What is the most likely result?

Accepted Answer

The cell will not complete cytokinesis, resulting in a multinucleated cell.

Question 12

Which of the following best explains why plant cells cannot form a cleavage furrow during cytokinesis?

Accepted Answer

Plant cells have a rigid cell wall that prevents pinching.

Question 13

If a cell is observed with a clearly visible cell plate forming, what type of organism is it most likely from?

Accepted Answer

Plant

Question 14

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

Accepted Answer

Prophase, Metaphase, Anaphase, Telophase

Question 15

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

Accepted Answer

Metaphase

Question 16

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

Accepted Answer

They organize the mitotic spindle.

Question 17

If a mutation causes the nuclear envelope to not break down during mitosis, what is the most likely consequence?

Accepted Answer

Spindle fibers will not be able to attach to chromosomes.

Question 18

Which of the following is true regarding the chromosome number after mitosis in somatic cells?

Accepted Answer

The chromosome number remains the same as the parent cell.

Question 19

A cell with a mutation in the kinetochore proteins would most likely have difficulty with which process?

Accepted Answer

Attachment of spindle fibers to chromosomes

Question 20

Which of the following equations correctly represents the chromosome number in a diploid organism after mitosis?

Accepted Answer

$$2n$$

El Ciclo Celular y la Mitosis: Estructura y Proceso

Guida di studio - Domande di pratica