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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

At the end of anaphase II in meiosis, how many chromatids are present on each side of the cell?

n pairs of chromatids

2 chromatids

2n chromatids

n chromatids

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Verified step by step guidance

Recall that meiosis consists of two divisions: meiosis I and meiosis II. Each division separates different structures within the cell.

At the end of meiosis I, homologous chromosomes are separated, and each daughter cell contains chromosomes made up of two sister chromatids.

During meiosis II, the sister chromatids are separated, similar to mitosis, resulting in individual chromatids moving to opposite poles.

By the end of anaphase II, the sister chromatids have been pulled apart, so each side of the cell contains individual chromatids rather than pairs.

Since the original diploid number is 2n, after meiosis I each cell has n chromosomes (each with two chromatids), and after anaphase II, each side has n chromatids, one per chromosome.