BIOL133 K006 MITOSIS LAB | SPRING COMPLETE
SOLUTION | STUDY GUIDE | LATEST UPDATE
2026/2027 | ACTUAL EXAM | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
INTRODUCTION
This comprehensive solution guide is meticulously designed for students completing the
BIOL133 K006 Mitosis Lab, aligned with the latest 2026/2027 undergraduate biology
curriculum standards for cellular biology laboratory courses. This document provides a
complete solution set covering all key areas including cell cycle phases (interphase G1, S, G2),
mitosis stages (prophase, metaphase, anaphase, telophase), chromosome behavior, cytokinesis,
microscopy techniques, onion root tip analysis, and meiosis. Each question includes the correct
answer with a detailed rationale, explaining the underlying biological principles and common
misconceptions. This exam review is intended to help students assess their understanding,
identify knowledge gaps, and achieve success on their laboratory assignment.
TABLE OF CONTENTS
Purpose of the Experiment
Cell Division Overview
Cell Cycle Phases (Interphase: G1, S, G2)
Mitosis Stages (Prophase, Metaphase, Anaphase, Telophase)
Cytokinesis (Animal vs. Plant Cells)
Meiosis (Meiosis I and Meiosis II)
Onion Root Tip Analysis and Mitotic Index Calculation
Microscopy and Staining Techniques
Key Concepts and Checkpoints
Glossary of Terms
, SECTION 1: PURPOSE OF THE EXPERIMENT
Purpose of experiment:
1. Cell division: mitosis. Identify and examine the stages of mitosis in animal cells
(whitefish blastula) and plant cells (onion root tip) using various slides.
2. Determine the relative length of mitotic stages using onion root tip analysis.
3. Examine chromosome segregation in meiosis.
SECTION 2: CELL DIVISION OVERVIEW
What is cell division?
Cell division is the process by which a parent cell divides into two or more daughter cells.
Examples include binary fission in E. coli, mitosis in kidney epithelium, and meiosis in lily
pollen.
Why is cell division important?
Unicellular organisms (prokaryotes, some eukaryotes): reproduction—division of one
cell reproduces entire organisms.
Multicellular organisms: development from fertilized cells, growth, repair and
regeneration, production of sex cells (sperm and egg), required for sexual reproduction.
Cell division in eukaryotes:
Goal: to produce genetically identical or nearly identical daughter cells.
Genetic information is housed in chromatin (non-dividing cells) which condenses into
chromosomes during cell division.
Humans: 46 total chromosomes (2n) or 23 pairs, one from each parent.
Two types of cell division in eukaryotes:
Mitosis: makes more somatic cells; 1 somatic cell (2n) divides to make 2 identical
daughter cells (2n); used for growth, development, repair, and asexual reproduction.
Meiosis: makes gametes from somatic cells; 1 specialized somatic cell (2n) divides to
produce 4 gametes (each n); daughter cells are non-identical; required for eukaryotes that
undergo sexual reproduction.
SECTION 3: CELL CYCLE PHASES
SOLUTION | STUDY GUIDE | LATEST UPDATE
2026/2027 | ACTUAL EXAM | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
INTRODUCTION
This comprehensive solution guide is meticulously designed for students completing the
BIOL133 K006 Mitosis Lab, aligned with the latest 2026/2027 undergraduate biology
curriculum standards for cellular biology laboratory courses. This document provides a
complete solution set covering all key areas including cell cycle phases (interphase G1, S, G2),
mitosis stages (prophase, metaphase, anaphase, telophase), chromosome behavior, cytokinesis,
microscopy techniques, onion root tip analysis, and meiosis. Each question includes the correct
answer with a detailed rationale, explaining the underlying biological principles and common
misconceptions. This exam review is intended to help students assess their understanding,
identify knowledge gaps, and achieve success on their laboratory assignment.
TABLE OF CONTENTS
Purpose of the Experiment
Cell Division Overview
Cell Cycle Phases (Interphase: G1, S, G2)
Mitosis Stages (Prophase, Metaphase, Anaphase, Telophase)
Cytokinesis (Animal vs. Plant Cells)
Meiosis (Meiosis I and Meiosis II)
Onion Root Tip Analysis and Mitotic Index Calculation
Microscopy and Staining Techniques
Key Concepts and Checkpoints
Glossary of Terms
, SECTION 1: PURPOSE OF THE EXPERIMENT
Purpose of experiment:
1. Cell division: mitosis. Identify and examine the stages of mitosis in animal cells
(whitefish blastula) and plant cells (onion root tip) using various slides.
2. Determine the relative length of mitotic stages using onion root tip analysis.
3. Examine chromosome segregation in meiosis.
SECTION 2: CELL DIVISION OVERVIEW
What is cell division?
Cell division is the process by which a parent cell divides into two or more daughter cells.
Examples include binary fission in E. coli, mitosis in kidney epithelium, and meiosis in lily
pollen.
Why is cell division important?
Unicellular organisms (prokaryotes, some eukaryotes): reproduction—division of one
cell reproduces entire organisms.
Multicellular organisms: development from fertilized cells, growth, repair and
regeneration, production of sex cells (sperm and egg), required for sexual reproduction.
Cell division in eukaryotes:
Goal: to produce genetically identical or nearly identical daughter cells.
Genetic information is housed in chromatin (non-dividing cells) which condenses into
chromosomes during cell division.
Humans: 46 total chromosomes (2n) or 23 pairs, one from each parent.
Two types of cell division in eukaryotes:
Mitosis: makes more somatic cells; 1 somatic cell (2n) divides to make 2 identical
daughter cells (2n); used for growth, development, repair, and asexual reproduction.
Meiosis: makes gametes from somatic cells; 1 specialized somatic cell (2n) divides to
produce 4 gametes (each n); daughter cells are non-identical; required for eukaryotes that
undergo sexual reproduction.
SECTION 3: CELL CYCLE PHASES
