Table of contents

1. Introduction to Biology2h 42m
2. Chemistry3h 37m
3. Water1h 26m
4. Biomolecules2h 23m
5. Cell Components2h 26m
6. The Membrane2h 31m
7. Energy and Metabolism2h 0m
8. Respiration2h 40m
9. Photosynthesis2h 49m
10. Cell Signaling59m
11. Cell Division2h 47m
12. Meiosis2h 0m
13. Mendelian Genetics4h 44m
14. DNA Synthesis2h 27m
15. Gene Expression3h 6m
16. Regulation of Expression3h 31m
17. Viruses37m
- Viruses
  37m
18. Biotechnology2h 58m
19. Genomics17m
- Genomes
  17m
20. Development1h 5m
21. Evolution3h 1m
22. Evolution of Populations3h 53m
23. Speciation1h 37m
24. History of Life on Earth2h 6m
25. Phylogeny2h 31m
26. Prokaryotes4h 59m
27. Protists1h 12m
28. Plants1h 22m
29. Fungi36m
- Fungi
  19m
- Fungi Reproduction
  17m
30. Overview of Animals34m
- Overview of Animals
  34m
31. Invertebrates1h 2m
32. Vertebrates50m
33. Plant Anatomy1h 3m
34. Vascular Plant Transport1h 2m
- Water Potential
  1h 2m
35. Soil37m
- Soil and Nutrients
  20m
- Nitrogen Fixation
  16m
36. Plant Reproduction47m
- Flowers
  33m
- Seeds
  14m
37. Plant Sensation and Response1h 9m
38. Animal Form and Function1h 19m
39. Digestive System1h 10m
- Digestion
  1h 3m
- Blood Sugar Homeostasis
  7m
40. Circulatory System1h 49m
41. Immune System1h 12m
42. Osmoregulation and Excretion50m
- Osmoregulation and Excretion
  50m
43. Endocrine System1h 4m
- Endocrine System
  1h 4m
44. Animal Reproduction1h 2m
- Animal Reproduction
  1h 2m
45. Nervous System1h 55m
- Neurons and Action Potentials
  1h 8m
- Central and Peripheral Nervous System
  46m
46. Sensory Systems46m
- Sensory System
  46m
47. Muscle Systems23m
- Musculoskeletal System
  23m
48. Ecology3h 11m
49. Animal Behavior28m
- Animal Behavior
  28m
50. Population Ecology3h 41m
51. Community Ecology2h 46m
52. Ecosystems2h 36m
53. Conservation Biology24m
- Conservation Biology
  24m

12. Meiosis

Mitosis & Meiosis Review

General Biology

12. Meiosis

Mitosis & Meiosis Review

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Multiple Choice

What is the main difference between mitosis and meiosis?

Mitosis results in cells with half the number of chromosomes, while meiosis maintains the chromosome number.

Mitosis involves two rounds of cell division, while meiosis involves only one.

Mitosis occurs only in reproductive cells, while meiosis occurs in all body cells.

Mitosis produces two genetically identical diploid cells, while meiosis produces four genetically unique haploid cells.

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Verified step by step guidance

Step 1: Begin by understanding the purpose of mitosis and meiosis. Mitosis is a process of cell division that occurs in somatic (body) cells to produce two genetically identical diploid cells for growth, repair, and maintenance. Meiosis, on the other hand, occurs in reproductive cells (gametes) to produce four genetically unique haploid cells for sexual reproduction.

Step 2: Analyze the chromosome number in the resulting cells. Mitosis maintains the chromosome number of the parent cell, producing diploid cells (2n), while meiosis reduces the chromosome number by half, producing haploid cells (n). This reduction is crucial for maintaining the species' chromosome number during fertilization.

Step 3: Examine the number of cell divisions involved. Mitosis involves a single round of cell division, resulting in two daughter cells. Meiosis involves two rounds of cell division (meiosis I and meiosis II), resulting in four daughter cells.

Step 4: Consider the genetic composition of the resulting cells. Mitosis produces genetically identical cells, ensuring consistency in somatic cell function. Meiosis introduces genetic variation through processes like crossing over and independent assortment, which occur during meiosis I.

Step 5: Summarize the key difference. Mitosis produces two genetically identical diploid cells, while meiosis produces four genetically unique haploid cells. This distinction is essential for understanding their roles in growth, repair, and reproduction.