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

7. DNA and Chromosome Structure

Eukaryotic Chromosome Structure

Genetics

7. DNA and Chromosome Structure

Eukaryotic Chromosome Structure

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Multiple Choice

What is the name of the enzyme that removes supercoils in DNA?

Ligase

Polymerase

Topoisomerase

Kinase

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Verified step by step guidance

Understand the concept of supercoiling in DNA: Supercoiling refers to the over-winding or under-winding of a DNA strand, which can occur during processes like replication and transcription.

Identify the role of enzymes in managing DNA supercoiling: Enzymes are crucial in maintaining the structure and function of DNA by resolving supercoils.

Learn about topoisomerases: These are enzymes specifically designed to manage DNA supercoiling by cutting, unwinding, and rejoining DNA strands.

Differentiate between types of topoisomerases: There are two main types, Type I and Type II, which differ in their mechanism of action and the number of DNA strands they cut.

Recognize the function of topoisomerase in removing supercoils: Topoisomerases alleviate supercoiling by transiently breaking DNA strands, allowing them to rotate and relieve tension, then rejoining them.