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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

17. Mutation, Repair, and Recombination

DNA Repair

Genetics

17. Mutation, Repair, and Recombination

DNA Repair

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Multiple Choice

Short segments of newly synthesized DNA are joined into a continuous strand by _____.

DNA ligase

Topoisomerase

Helicase

DNA polymerase

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Verified step by step guidance

Understand the process of DNA replication, where the double helix is unwound and new strands are synthesized.

Recognize that the lagging strand is synthesized in short fragments called Okazaki fragments.

Identify that these Okazaki fragments need to be joined together to form a continuous strand.

Recall the enzyme responsible for joining these short DNA segments is DNA ligase, which catalyzes the formation of phosphodiester bonds between fragments.

Differentiate DNA ligase from other enzymes like topoisomerase (which relieves supercoiling), helicase (which unwinds DNA), and DNA polymerase (which synthesizes new DNA strands).