Table of contents

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 occurs during meiosis but not during mitosis?

The resulting cells are genetically identical to the parent cell

Homologous chromosomes undergo synapsis and crossing over

DNA replication occurs before cell division

Sister chromatids separate during cell division

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Verified step by step guidance

Step 1: Understand the key differences between mitosis and meiosis. Mitosis results in two genetically identical daughter cells, while meiosis produces four genetically diverse gametes.

Step 2: Recall that DNA replication occurs before both mitosis and meiosis, so this process is common to both and not unique to meiosis.

Step 3: Recognize that sister chromatids separate during both mitosis and meiosis II, so this event is not exclusive to meiosis as a whole.

Step 4: Focus on the process of synapsis and crossing over, which involves homologous chromosomes pairing up and exchanging genetic material. This occurs only during prophase I of meiosis and not during mitosis.

Step 5: Conclude that the unique event during meiosis but not mitosis is the homologous chromosomes undergoing synapsis and crossing over, leading to genetic recombination.