Question 1

If a mosquito's somatic (body) cells contain 6 chromosomes, how many chromosomes will be present in its gametes after meiosis?

Accepted Answer

3 chromosomes

Question 2

During which phase of mitosis do chromosomes align at the center (equator) of the cell?

Accepted Answer

Metaphase

Question 3

What is the primary function of the mitotic spindle during cell division?

Accepted Answer

To separate sister chromatids

Question 4

Which structure is responsible for organizing microtubules during mitosis?

Accepted Answer

Centrosome

Question 5

In plant cells, what structure forms to separate the nuclei of two daughter cells during cytokinesis?

Accepted Answer

Cell plate

Question 6

Which process is essential for growth, healing, and replacement of worn-out body cells?

Accepted Answer

Mitosis

Question 7

A human cell in interphase is preparing for division. Which of the following must occur before mitosis begins?

Accepted Answer

DNA replication

Question 8

Which phase of the cell cycle is characterized by the cell growing and carrying out normal functions, but not dividing?

Accepted Answer

Interphase

Question 9

In humans, how many chromosomes are found in a gamete?

Accepted Answer

23 chromosomes

Question 10

Which of the following events occurs immediately before cell division?

Accepted Answer

The cell's genetic material is copied (duplicated)

Question 11

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

Accepted Answer

Anaphase

Question 12

Which process results in two genetically identical daughter cells?

Accepted Answer

Mitosis

Question 13

A researcher observes a cell with chromosomes condensed and the nuclear envelope breaking down. Which phase is this?

Accepted Answer

Prophase

Question 14

Which equation correctly represents the chromosome number in human somatic cells and gametes?

Accepted Answer

$2n = 46$ for somatic cells, $n = 23$ for gametes

Question 15

Which of the following best describes cytokinesis in animal cells?

Accepted Answer

Pinching in of the plasma membrane to form a cleavage furrow

Question 16

A mutation prevents spindle fibers from attaching to chromosomes during mitosis. What is the most likely consequence?

Accepted Answer

Chromosomes will not be evenly distributed to daughter cells

Question 17

Which phase of mitosis is characterized by the reformation of the nuclear envelope and the decondensation of chromosomes?

Accepted Answer

Telophase

Question 18

Which of the following is NOT a function of mitosis in multicellular organisms?

Accepted Answer

Production of gametes

Question 19

Which of the following correctly lists the order of events in the cell cycle?

Accepted Answer

Interphase $\rightarrow$ Mitosis $\rightarrow$ Cytokinesis

Question 20

A scientist observes a cell with chromosomes lined up at the equator and spindle fibers attached. What phase is this?

Accepted Answer

Metaphase

Cell Division and Chromosomes: Study Guide for Cell Biology

Study Guide - Practice Questions