Table of contents

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

27. The Reproductive System

Meiosis

Anatomy & Physiology

27. The Reproductive System

Meiosis

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Multiple Choice

Which of the following steps must occur before Meiosis I in germ cells?

The DNA of the haploid cell is replicated.

The RNA of the diploid cell is replicated.

The DNA of the diploid cells is replicated.

The two cells need to be physically separated by cytokinesis.

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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 the production of haploid gametes from diploid germ cells.

Recognize that before meiosis begins, the germ cell must be in a diploid state, meaning it has two sets of chromosomes.

Identify that the process of DNA replication occurs during the S phase of the cell cycle, which is part of interphase, before meiosis I begins.

Acknowledge that during this DNA replication, each chromosome in the diploid cell is duplicated, resulting in two identical sister chromatids for each chromosome.

Clarify that cytokinesis, the physical separation of cells, occurs after meiosis I and meiosis II, not before meiosis I. Therefore, the correct step before meiosis I is the replication of DNA in diploid cells.