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1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

9. Mitosis and Meiosis

Meiosis

Genetics

9. Mitosis and Meiosis

Meiosis

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Multiple Choice

Which of the following events occurs during prophase I of meiosis?

Homologous chromosomes pair and exchange genetic material through crossing over.

Chromosomes align individually along the metaphase plate.

Sister chromatids separate and move to opposite poles.

The nuclear envelope reforms around haploid sets of chromosomes.

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Verified step by step guidance

Understand the stages of meiosis, focusing on prophase I, metaphase I, anaphase II, and telophase II to identify the correct event for each stage.

Recall that during prophase I, homologous chromosomes undergo synapsis, where they pair tightly along their lengths.

Recognize that crossing over, the exchange of genetic material between homologous chromosomes, occurs during prophase I, increasing genetic diversity.

Note that chromosome alignment individually along the metaphase plate happens during metaphase (specifically metaphase I or II), not prophase I.

Remember that sister chromatids separate during anaphase II, and the nuclear envelope reforms during telophase II, both events occurring after prophase I.