Genetics introduction to Medicos

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this ppt contains basic intro to genetics and its terminologies needed for medical students

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Genetics introduction to Medicos

  1. 1. Dr.R.Rajprasath, Junior resident,JIPMER19/10/2012 JIPMER ANATOMY 1
  2. 2.  DNA & structure  Gene & Genome  Chromosomes  Chromatin & Chromatids  Locus & Allele19/10/2012 JIPMER ANATOMY 2
  3. 3.  nucleic acid-stores & transmits genetic information  Repeating sequences of nucleotides19/10/2012 JIPMER ANATOMY 3
  4. 4. 19/10/2012 JIPMER ANATOMY 4
  5. 5. 19/10/2012 JIPMER ANATOMY 5
  6. 6. 19/10/2012 JIPMER ANATOMY 6
  7. 7. 19/10/2012 JIPMER ANATOMY 7
  8. 8.  Unit of genetic information encoded by DNA  Organised into a number of rod shaped organelle called CHROMOSOMES.  GENOME : complete sets DNA of an organism19/10/2012 JIPMER ANATOMY 8
  9. 9.  Condensed DNA + histone+ non histone proteins  Chromatin: uncondensed DNA+ histone+ non histone proteins  Euchromatin : active  Heterochromatin : inactive  Chromatid : cell division- replica of chromosome19/10/2012 JIPMER ANATOMY 9
  10. 10. 19/10/2012 JIPMER ANATOMY 10
  11. 11. 19/10/2012 JIPMER ANATOMY 11
  12. 12.  locus-precise position of gene in a chromosome  Allele- pair of genes in same locus in homologous chromosomes homozygous heterozygous19/10/2012 JIPMER ANATOMY 12
  13. 13. 19/10/2012 JIPMER ANATOMY 13
  14. 14. 19/10/2012 JIPMER ANATOMY 14
  15. 15. Gene,loci, chromosome ??!! DNA,allele…19/10/2012 JIPMER ANATOMY 15
  16. 16. Have a brake..19/10/2012 JIPMER ANATOMY 16

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