Skip to ContentGo to accessibility page
OpenStax Logo
Concepts of Biology

Review Questions

Concepts of BiologyReview Questions

Review Questions

2.

A diploid cell has ________ the number of chromosomes as a haploid cell.

  1. one-fourth
  2. one-half
  3. twice
  4. four times
3.

An organism’s traits are determined by the specific combination of inherited ________.

  1. cells
  2. genes
  3. proteins
  4. chromatids
4.

Chromosomes are duplicated during what portion of the cell cycle?

  1. G1 phase
  2. S phase
  3. prophase
  4. prometaphase
5.

Separation of the sister chromatids is a characteristic of which stage of mitosis?

  1. prometaphase
  2. metaphase
  3. anaphase
  4. telophase
6.

The individual chromosomes become visible with a light microscope during which stage of mitosis?

  1. prophase
  2. prometaphase
  3. metaphase
  4. anaphase
7.

What is necessary for a cell to pass the G2 checkpoint?

  1. cell has reached a sufficient size
  2. an adequate stockpile of nucleotides
  3. accurate and complete DNA replication
  4. proper attachment of mitotic spindle fibers to kinetochores
8.

________ are changes to the nucleotides in a segment of DNA that codes for a protein.

  1. Proto-oncogenes
  2. Tumor suppressor genes
  3. Gene mutations
  4. Negative regulators
9.

A gene that codes for a positive cell cycle regulator is called a(n) ________.

  1. kinase inhibitor
  2. tumor suppressor gene
  3. proto-oncogene
  4. oncogene
10.

Which eukaryotic cell-cycle event is missing in binary fission?

  1. cell growth
  2. DNA duplication
  3. mitosis
  4. cytokinesis
11.

FtsZ proteins direct the formation of a ________ that will eventually form the new cell walls of the daughter cells.

  1. contractile ring
  2. cell plate
  3. cytoskeleton
  4. septum
PreviousNext
Order a print copy
Citation/Attribution
Reuse and redistribution of this content in digital or print format:
  • This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's prior written permission.
  • This book uses the Creative Commons Attribution-NonCommercial-ShareAlike License, which means that you can reuse and modify the material only for noncommercial purposes, must attribute OpenStax, and must distribute any derivative works under the same license.
  • Any commercial printing of this textbook, including using a local or custom printer, must be approved by OpenStax, and proper citation provided.
  • OpenStax-copyrighted images, activities, assessments, and similar components of this book are subject to the same licensing – CC-BY-NC-SA. They can be used for noncommercial purposes with attribution. Commercial use requires permission.
  • Permission requests: Anyone who intends to incorporate this content (including text, images, and other components) into large language models, use it in AI offerings, use it commercially (including in print), and/or has questions about another use case is welcome to complete our reuse request form.
Attribution information
  • If you are redistributing all or part of this book in a noncommercial print format, then you must include on every physical page the following attribution:

    Access for free at https://openstax.org/books/concepts-biology/pages/1-introduction

  • If you are redistributing all or part of this book in a noncommercial digital format, then for every page that includes OpenStax content, you must license the derivative work under the same CC-BY-NC-SA license as the original, and include on every digital page view the following attribution:

    Access for free at https://openstax.org/books/concepts-biology/pages/1-introduction

Citation information

The information below includes the information needed to generate citations in most major styles (APA, MLA, etc.); you must reformat and organize the information as needed to fit the requirements of the style. Use the information below to generate a citation. We recommend using a citation tool such as this one.

© Jul 22, 2026 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike License. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo, and Rice University name, and Rice University logo trademarks, or wordmarks are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.