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

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

Genetics

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

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Multiple Choice

Identical copies of chromatin held together by cohesin at the centromere are called _____.

sister chromatids

telomeres

homologous chromosomes

centrioles

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Verified step by step guidance

Understand the structure of chromosomes during cell division: each chromosome consists of two identical copies of DNA called chromatids.

Recognize that these identical copies are held together at a specific region called the centromere.

Recall that the protein complex responsible for holding these identical chromatids together is called cohesin.

Identify that the term for these identical copies of chromatin held together by cohesin at the centromere is 'sister chromatids'.

Differentiate sister chromatids from other terms: telomeres are chromosome ends, homologous chromosomes are chromosome pairs from each parent, and centrioles are cell structures involved in spindle formation.