Genetics introduction to Medicos
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Transcript of Genetics introduction to Medicos
Dr.R.Rajprasath,Junior resident,JIPMER
19/10/2012 JIPMER ANATOMY 1
DNA & structure
Gene & Genome
Chromosomes
Chromatin & Chromatids
Locus & Allele
19/10/2012 JIPMER ANATOMY 2
nucleic acid-stores & transmits genetic information
Repeating sequences of nucleotides
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Unit of genetic information encoded by DNA
Organised into a number of rod shaped organelle called CHROMOSOMES.
GENOME : complete sets DNA of an organism
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Condensed DNA + histone+ non histone proteins
Chromatin: uncondensed DNA+ histone+ non histone proteins
Euchromatin : active
Heterochromatin : inactive
Chromatid : cell division- replica of chromosome
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locus-precise position of gene in a chromosome
Allele- pair of genes in same locus in homologous chromosomes
homozygous heterozygous
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Gene,loci,chromosome DNA,allele…??!!
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Have a brake..
JIPMER ANATOMY19/10/2012 16