Introduction to Genetics

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Introduction to Genetics

  1. 1. INTRODUCTION TO GENETICS By: Samantha Rose Bernardo Vanessa Celine Gabaldon AAPD2F
  2. 2. What is Genetics? It is the science that deals with the study of heredity and variation. GENETICS came from the word gen, genetikos meaning generative and genesis meaning beginning.HEREDITY: transmission of traits from parent to offspring.VARIATION: similarities and differences
  3. 3. Scientists Who Contributed in Genetics
  4. 4. CHARLES DARWINIdea of natural evolutionOrigin of Species Pangenesis Theory
  5. 5. ARISTOTLEalso contributed inPangenesis Theorygemmules
  6. 6. GREGOR MENDEL Father of modern Genetics He used Pisum Sativum (Graden Pea) in his study. There are 7 characteristics of pea in his study LAW: Mendelian Laws of Inheritance (Law of Segragation and Independent Assortment)
  7. 7. WHO DUPLICATED THE WORK OF MENDEL (1900)
  8. 8. CARL CORRENS
  9. 9. HUGO DE VRIES
  10. 10. ERICH VON ISCHERMAK
  11. 11. FRIEDRICH MIESCHER He said that within the chromosomes, there is weak acid.
  12. 12. WILLIAM HENRY SUTTON Affiliated the behavior of chromosomes to the genes.
  13. 13. SCIENTISTS WHOCONFIRMED DNA
  14. 14. OSWALD AVERY
  15. 15. COLIN MUNRO MACLEOD
  16. 16. MACLYN McCARTY
  17. 17. ROSALIND FRANKLIN Gave an idea that the structure of DNA is a helical structure.
  18. 18. SCOPE AND BRANCHES
  19. 19. CYTOGENETICS Science that deals with the physical basic of heredity (cell) MOLECULAR GENETICS  Chemical basis of heredity  Newest and most advanced field of Genetics
  20. 20. BRANCHES OF MOLECULAR GENETICS GENOMICS  Study of genes of an organism PROTEONICS study of proteins coming from DNA replication.
  21. 21. CLASSICAL GENETICS  Study of analysis of offspring to mating (parents to offspring) POPULATION GENETICS Deals with the transmission of trait with a large group of individual through a passage of time. BEHAVIORAL GENETICS  Study of behavior of an organism.
  22. 22. BEHAVIORAL GENETICS Study of behavior of an organism.
  23. 23. METHODS OF GENETIC STUDY1. Pedigree Analysis Transmission of trait through the use of pedigree. Pictorial representation2. Karyotyping Detect chromosomal abnormality karyogram/ karyotype (pictorial representation of chromosomes)
  24. 24. 3. Planned Experimental Breeding Dominant trait- can be seen and manifested trait. Recessive- hidden trait Homozygous- two identical alleles Heterozygous- two unidentical alleles4. Twin Study Study of twins
  25. 25. Kinds of Twins:Praternal- Dizygotic twinIdentical- Monozygotic twinConcordance twin(praternal)- possess a trait or do not or bothDisconcordance(identical)- if one possesses the other is not.5. Statistical Analysis Make use of several data Use for population data
  26. 26. 2 Kinds of HypothesisNull  Negative guessAlternative  Positive guess
  27. 27. GENETIC ENGINEERINGKey factor for biotechnologyCome up with a desirable traitManipulating a certain trait
  28. 28. APPLICATION OF GENETICS1. Field of Medicine2. Agriculture/Food Production/Industry3. Legal Application4. Genetic Counseling5. Genetic Code
  29. 29. The End

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