About This Chapter
Who's it for?
Anyone who needs help learning or mastering human anatomy and physiology material will benefit from taking this course. There is no faster or easier way to learn about human anatomy and physiology. Among those who would benefit are:
- Students who have fallen behind in understanding the stages in mitosis and meiosis
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about cell division
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Cell Division chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Cell Division chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any cell division question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
In this chapter, you'll learn the answers to questions including:
- What are the different phases of the cell cycle?
- How are chromosome structured, and what are their characteristics?
- What structures are found in the mitotic spindle?
- What phases are found in chromosome segregation?
- How does cytokinesis occur in plant and animal cells?
- What is the difference between asexual and sexual reproduction?
- How do equational and reductional cell division differ?
- What do nondisjunction and aneuploidy mean in relation to cell division?
1. Basic Genetics: The Genome & Chromosomes
There are approximately 3 billion bases in the human genome. In this lesson, you'll learn more about the genome and its organization into chromosomes. We think about DNA often as the blueprint for life, but we can also think of it as the recipe for life with the nucleus being the library.
2. How is DNA Organized into Chromosomes? - Structure & Function
Explore the structure of chromosomes and see how DNA fits inside the nucleus of the cell. In this lesson, you'll learn about histones, chromatin and nucleosomes.
3. The Cell Cycle: Definition, Phases & Sequence
Learn about the dividing and non-dividing states of the cell and discover the different phases of the cell cycle, including interphase, cytokinesis, and the stages of cell division.
4. How is DNA Packaged? - Chromosome Condensation & Karyograms
Learn how DNA packaging makes it possible to fit approximately seven feet of DNA inside a single cell. You'll see how chromosome condensation helps cells get ready for cell division.
5. Parts of a Chromosome & Their Roles
Learn all about chromosomes, including the different parts of a chromosome and the types of chromosomes in diploid organisms like humans. Learn the vocab used with chromosomes.
6. Mitotic Spindle: Definition, Formation & Function
Condensation makes DNA ready / And microtubules hold it steady / A microtubule's a fancy rope / To move the DNA is the hope / From spindle poles they do extend / To align each chromosome in the end
7. Stages of Mitosis: Description & Sequence
Let's take a second look at mitosis and focus on the phases of chromosome segregation. As we concentrate on chromosomes, you'll learn the tricky dance that takes place through all five phases of mitosis.
8. Cytokinesis: Animal Versus Plant Cells
What's a cell to do when it must divide in two? We'll explore cytokinesis and see how the process can differ in important ways when it comes to plant versus animal cells.
9. Asexual vs. Sexual Reproduction: Comparison & Characteristics
Did you know that some organisms can reproduce without a mate? Check out this video lesson on asexual versus sexual reproduction to discover the different ways organisms can reproduce and the main differences between mitosis and meiosis.
10. Meiosis: Comparison to Mitosis, Crossing Over & Process
Welcome to meiosis, a realm of division doubled for reproduction untroubled. You'll get a preview of both divisions of meiosis and see what it takes to go from a diploid cell to a haploid gamete.
11. Meiosis I Stages: Prophase I, Metaphase I, Anaphase I & Telophase I
How does meiosis keep track of homologs and reduce the genome by half? Know these answers and more as we navigate the steps of meiosis I. This lesson will be tetradical!
12. Meiosis II: Definition, Stages & Comparison to Meiosis I
Behold round two of meiotic cell division! You'll see how meiosis II keeps the genome intact and gives the final push to produce haploid gametes, which make the world go round.
13. Nondisjunction & Aneuploidy: Definition & Examples
Learn why proper chromosome segregation is essential during meiosis. We'll see how having an extra chromosome can lead to Down Syndrome and also examine the consequences of having too few chromosomes. Disruptions to the delicate balance of cell division can have far-reaching effects.
14. What Is Cell Division? - Stages & Process
Some organisms consist of only one cell, while others, like you, are made up of trillions of cells. All these cells can produce more cells by undergoing cell division. Learn about the different steps of cell division in this lesson.
15. Amoebocytes: Definition & Functions
Amoebocytes are motile cells that can transform themselves into any other cell. They play a vital role in structure, digestion, reproduction, and regeneration. This lesson will explain the various roles these amoeba like cells play in sponges.
16. Choanocytes: Definition & Functions
In this lesson, you'll explore a unique structure found in sponges. Choanocytes are special cells that are involved in many activities, ranging from water circulation to feeding and even reproduction.
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Other chapters within the College Biology: Help and Review course
- Science Basics: Help and Review
- Review of Inorganic Chemistry For Biologists: Help and Review
- Introduction to Organic Chemistry: Help and Review
- Nucleic Acids - DNA and RNA: Help and Review
- Enzymatic Biochemistry: Help and Review
- Cell Biology: Help and Review
- DNA Replication - Processes and Steps: Help and Review
- The Transcription and Translation Process: Help and Review
- Genetic Mutations: Help and Review
- Metabolic Biochemistry: Help and Review
- Plant Biology: Help and Review
- Plant Reproduction and Growth: Help and Review
- Physiology I - The Circulatory, Respiratory, Digestive, Excretory, and Musculoskeletal Systems: Help and Review
- Physiology II - The Nervous, Immune, and Endocrine Systems: Help and Review
- Animal Reproduction and Development: Help and Review
- Genetics - Principles of Heredity: Help and Review
- Principles of Ecology: Help and Review
- Principles of Evolution: Help and Review
- The Origin and History of Life On Earth: Help and Review
- Phylogeny and the Classification of Organisms: Help and Review
- Social Biology: Help and Review
- Basic Molecular Biology Laboratory Techniques: Help and Review
- Analyzing Scientific Data: Help and Review
- Microbiology Overview