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
- 19. Cancer Genetics29m
- 20. Quantitative Genetics1h 26m
- 21. Population Genetics50m
- 22. Evolutionary Genetics29m
7. DNA and Chromosome Structure
DNA Structure
1:55 minutes
Problem 5h
Textbook Question
Textbook QuestionOne strand of a fragment of duplex DNA has the sequence 5'-ATCGACCTGATC-3'.
What is the name of the bond that joins one nucleotide to another in the DNA strand?
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Phosphodiester Bond
A phosphodiester bond is a type of covalent bond that links nucleotides together in a DNA strand. It forms between the phosphate group of one nucleotide and the hydroxyl group on the sugar of another nucleotide, creating a backbone that is essential for the structural integrity of DNA.
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Nucleotide Structure
Nucleotides, the building blocks of DNA, consist of three components: a phosphate group, a five-carbon sugar (deoxyribose in DNA), and a nitrogenous base. The sequence of these nucleotides encodes genetic information, and their arrangement is crucial for the formation of the DNA double helix.
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DNA Structure
DNA is structured as a double helix, composed of two strands running in opposite directions, held together by hydrogen bonds between complementary nitrogenous bases. The phosphodiester bonds form the sugar-phosphate backbone of each strand, providing stability and support to the overall structure.
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