Last Minute Lecture

DNA — The Molecule of Inheritance, Structure, Replication, and Telomeres Explained | Chapter 16 of Campbell Biology Welcome to Last Minute Lecture! This post breaks down the molecular structure and hereditary function of DNA as explored in Chapter 16 of Campbell Biology . Learn about the key experiments that established DNA as the genetic material, the double helix model, replication, DNA repair, and the significance of telomeres. Watch the full video summary below and subscribe for clear, chapter-by-chapter genetics explanations! Introduction: Why DNA is Central to Life DNA is the hereditary molecule in all living organisms. Chapter 16 reveals how its structure, replication, and repair ensure the faithful transmission of genetic information from one generation to the next. DNA as the Genetic Material: Key Experiments Griffith’s Transformation (1928): Demonstrated that DNA can transfer genetic traits between bacteria. Hershey-Chase Experiment (1952): Used viruses...

Mendelian Genetics and Extensions — Laws of Inheritance, Probability, and Genetic Disorders Explained | Chapter 14 of Campbell Biology Welcome to Last Minute Lecture! This post explores Mendelian genetics and its modern extensions, as presented in Chapter 14 of Campbell Biology . Discover how Gregor Mendel’s experiments laid the foundation for understanding how genes are inherited, how probability laws predict genetic outcomes, and how more complex inheritance patterns go beyond simple dominance and recessiveness. Watch the full video summary below and subscribe for clear, chapter-by-chapter genetics lessons! Introduction: Mendel’s Legacy in Genetics Gregor Mendel’s work with pea plants established the laws of segregation and independent assortment—principles that remain at the core of modern genetics. This chapter shows how Mendel’s discoveries explain both simple and complex inheritance in all living things, including humans. Mendel’s Laws of Inheritance Law of Segr...