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BIOL 1001 – Exam 3 Review (65 Questions) – Cell Cycle, DNA, Genetics, Meiosis – Louisiana State University

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This document provides a detailed and well-structured review for Exam 3 in BIOL 1001, containing 65 multiple-choice questions with correct answers clearly indicated. It thoroughly covers essential topics from chapters 9 to 12, including the cell cycle (mitosis, interphase stages, and checkpoints), meiosis and chromosome behavior, DNA structure and replication, base pairing rules, sex-linked inheritance, test crosses, and disorders like trisomy 21 (Down syndrome). Each question is designed to reinforce key biological concepts and test exam readiness, making this resource ideal for independent study, exam prep, or self-assessment. The content is highly relevant for first-year university students enrolled in introductory biology, life sciences, or general science courses. It's also valuable for students in nursing, pre-med, biomedical sciences, and health science programs who need a strong grasp of biological principles for further coursework or entrance exams. Keywords: cell cycle, mitosis, meiosis, interphase, DNA structure, DNA replication, chromosomes, genetics, alleles, dominant, recessive, sex-linked traits, test cross, Mendelian inheritance, Watson and Crick, helicase, S phase, centromeres, binary fission, trisomy 21

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BIOL 1001 Exam 3 Review 9-12 2026
Exam Questions with 100% Correct
Answers | Latest Update



CHAPTER 9 & 10: Growth factors stimulate what?

(A) cyclin production.

(B) the cell to skip the S and G1 phases of interphase and undergo mitosis

directly.

(C) Cdk's to synthesize enzymes that digest cyclins.

(D) the cell to ignore the checkpoints of the cell cycle.


(E) NONE OF THE ABOVE - 🧠 ANSWER ✔✔A

,CHAPTER 9 & 10: What is a major difference between mitosis and

meiosis?

(A) Meiosis produces two daughter cells instead of the four daughter cells

produced in mitosis.

(B) Meiosis produces genetically identical daughter cells, whereas mitosis

produces genetically variable

daughter cells.

(C) Mitosis produces daughter cells, whereas meiosis produces parent

cells.

(D) Meiosis produces haploid cells, whereas mitosis produces diploid cells.


(E) NONE OF THE ABOVE - 🧠 ANSWER ✔✔D


CHAPTER 9 & 10: The two ends of a single chromosome are called what?

(A) genes.

(B) loci.

(C) telomeres.

(D) chromatids.


(E) centromeres. - 🧠 ANSWER ✔✔C

, CHAPTER 9 & 10: All of the following may be found in a DNA nucleotide

EXCEPT what?

(A) deoxyribose.

(B) adenine.

(C) thymine.

(D) phospholipid.


(E) NONE OF THE ABOVE - 🧠 ANSWER ✔✔D


CHAPTER 9 & 10: The genetic material in bacteria consists of what?

(A) several circular DNA molecules.

(B) one circular RNA molecule.

(C) many rod-like DNA molecules with protein.

(D) one circular DNA molecule.


(E) DNA in mitochondria. - 🧠 ANSWER ✔✔D


CHAPTER 9 & 10: During which phase of the eukaryotic cell cycle does

DNA and chromosome replication occur?

(A) the S phase of interphase



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