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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

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

Genetics

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

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Multiple Choice

A duplicated chromosome consists of two:

sister chromatids

telomeres

centromeres

homologous chromosomes

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Verified step by step guidance

Understand the structure of a duplicated chromosome: after DNA replication, a chromosome consists of two identical copies called chromatids.

Recall that these two identical copies are connected at a specific region called the centromere.

Recognize that the two identical chromatids connected by a centromere are called sister chromatids.

Differentiate sister chromatids from homologous chromosomes, which are pairs of chromosomes (one from each parent) that are similar but not identical.

Conclude that the correct term for the two parts of a duplicated chromosome is sister chromatids.