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1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Introduction to Cell Division

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cell Division

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Multiple Choice

During meiosis, how many chromosomes are present in a human cell at the end of meiosis I?

46 chromosomes

23 chromosomes

12 chromosomes

92 chromosomes

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Verified step by step guidance

Understand that meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells, each with half the number of chromosomes of the parent cell.

Recall that human cells are diploid, meaning they have two sets of chromosomes, totaling 46 chromosomes (23 pairs).

During meiosis I, homologous chromosomes are separated into two different cells. This is the reductional division where the chromosome number is halved.

At the end of meiosis I, each daughter cell contains one set of chromosomes, which means they are haploid. However, each chromosome still consists of two sister chromatids.

Therefore, at the end of meiosis I, each human cell contains 23 chromosomes, each with two sister chromatids, maintaining the total number of chromatids at 46.