How does an enzyme function? Why are enzymes essential for living organisms on Earth?
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
11. Translation
Proteins
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following describes the 3D structure of multiple polypeptide chains in a single protein?
A
Primary structure
B
Secondary structure
C
Tertiary structure
D
Quaternary structure

1
Understand the levels of protein structure: Proteins have four levels of structure - primary, secondary, tertiary, and quaternary.
Primary structure refers to the sequence of amino acids in a polypeptide chain.
Secondary structure involves local folding into structures like alpha-helices and beta-sheets, stabilized by hydrogen bonds.
Tertiary structure is the overall 3D shape of a single polypeptide chain, formed by interactions between side chains.
Quaternary structure describes the 3D arrangement of multiple polypeptide chains in a single protein, indicating how these chains interact and assemble into a functional unit.
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