Table of contents

1. Introduction to Microbiology3h 21m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

8. Eukaryotic Cell Structures & Functions

Mitosis & Meiosis

Microbiology

8. Eukaryotic Cell Structures & Functions

Mitosis & Meiosis

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3:00 minutes

Problem 12.14a

Textbook Question

Which of the following is common to mitosis and meiosis?

a. spindle
b. crossing over
c. tetrad of chromatids
d. cytokinesis

Verified step by step guidance

Identify the processes of mitosis and meiosis and their purposes in cell division.

Understand that both mitosis and meiosis involve the separation of chromosomes into daughter cells.

Recognize that a spindle apparatus is formed in both mitosis and meiosis to help separate chromosomes.

Note that crossing over and tetrad formation are specific to meiosis, not mitosis.

Acknowledge that cytokinesis, the division of the cytoplasm, occurs in both mitosis and meiosis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mitosis

Mitosis is a type of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell. It is essential for growth, repair, and asexual reproduction in organisms. The process includes stages such as prophase, metaphase, anaphase, and telophase, culminating in cytokinesis.

Meiosis

Meiosis is a specialized form of cell division that reduces the chromosome number by half, resulting in four genetically diverse gametes. It consists of two rounds of division: meiosis I and meiosis II, and is crucial for sexual reproduction. Key processes in meiosis include crossing over and the formation of tetrads, which enhance genetic diversity.

Spindle Apparatus

The spindle apparatus is a structure made of microtubules that segregates chromosomes during cell division. It is present in both mitosis and meiosis, facilitating the movement of chromosomes to opposite poles of the cell. The proper functioning of the spindle is critical for ensuring that each daughter cell receives the correct number of chromosomes.