Sinh học Lớp9
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Android OS
O Sinh học Lớp9
9th Grade Biology is the best textbook app
9th Grade Biology is the best textbook app
Chapter I. MENDEN'S EXPERIMENTS Lesson 1. Mendel and Genetics Lesson 2. Crossing a Trait Pair Lesson 3. Crossing a Trait Pair (continued) Lesson 4. Crossing Two Trait Pairs Lesson 5. Crossing Two Pairs trait (continued) Lesson 6. Practice: Calculating the probability of occurrence of faces of copper and metal Lesson 7. Exercises chapter I Chapter II. Chromosomes Lesson 8. Chromosomes Lesson 9. Mitosis Lesson 10. Meiosis Lesson 11. Gametogenesis and fertilization Lesson 12. Mechanisms of sex determination Lesson 13. Linked inheritance Lesson 14. Practice : Observing chromosome morphology Chapter III. DNA AND GEN Lesson 15. DNA Lesson 16. DNA and the nature of genes Lesson 17. Relationship between genes and RNA Lesson 18. Proteins Lesson 19. Relationship between genes and traits Lesson 20. Practice: Observation and assemble the DNA model Chapter IV. VARIABLES Lesson 21. Gene mutations Lesson 22. Chromosomal structural mutations Lesson 23. Chromosomal number mutations Lesson 24. Chromosomal number mutations (continued) Lesson 25. Normalizations Lesson 26. Practice : Identifying several types of mutations Lesson 27. Practice : Observing variables Chapter V. HUMAN GENETICATIONS Lesson 28. Methods of studying human genetics Lesson 29. Inherited diseases and defects in humans Lesson 30. Human genetics Chapter VI. GENERAL APPLICATION Lesson 31. Cell technology Lesson 32. Gene technology Lesson 33. Artificial mutation in breeding Lesson 34. Degeneration due to self-pollination and close mating Lesson 35. Hybrid superiority Lesson 36. Selection methods Lesson 37. Breeding achievements in Vietnam Lesson 38. Practice: Practice cross-pollination Lesson 39. Practice: Learn about the achievements of livestock and plant breeding Lesson 40. Review Inheritance and Variations Chapter I. Organisms and Environment Lesson 41. Environment and ecological factors Lesson 42. Effect of light on biological life Lesson 43. Effect of temperature and humidity on biological life Lesson 44. Interaction between organisms Lesson 45-46. Practice : Understanding the environment and the influence of some ecological factors on biological life Chapter II. ECOSYSTEM Lesson 47. Biomes Lesson 48. Human populations Lesson 49. Biomes Lesson 50. Ecosystems Lesson 51-52. Practice : Ecosystem Chapter III. HUMANS, NUMBERS AND ENVIRONMENT Lesson 53. Human impact on the environment Lesson 54. Environmental pollution Lesson 55. Environmental pollution (continued) Lesson 56-57. Practice : Understanding the local environmental situation Chapter IV. ENVIRONMENTAL PROTECTION Lesson 58. Rational use of natural resources Lesson 59. Restoring the environment and preserving wildlife Lesson 60. Protecting biodiversity of ecosystems Lesson 61. Law on environmental protection Lesson 62 Practice: Applying the Law on Environmental Protection to the protection of the local environment Lesson 63. Reviewing the Biology and Environment Lesson Lesson 64. Summary of the whole-level program Lesson 65. Summary of the whole-level program (continued) follow) Lesson 66. Summary of the full-level program (continued)
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