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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

During metaphase I of meiosis, the way each chromosome lines up is best described as:

identical to the arrangement in mitosis

determined by the size of the chromosome

random and independent of other chromosome pairs

based on the sequence of DNA

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Verified step by step guidance

Understand that during metaphase I of meiosis, homologous chromosome pairs (tetrads) line up along the metaphase plate.

Recall that each pair of homologous chromosomes aligns independently of other pairs, a concept known as independent assortment.

Recognize that this alignment is not determined by chromosome size or DNA sequence, nor is it identical to mitosis where individual chromosomes line up rather than pairs.

Conclude that the correct description of chromosome alignment during metaphase I is that it is random and independent for each homologous pair.

This random and independent alignment contributes to genetic variation in gametes by producing different combinations of maternal and paternal chromosomes.