BIOL 222, Lecture Notes - BIOL 222, Lecture Notes Joshua...

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BIOL 222, Lecture Notes Joshua Marceau, GENETICS, 101 Thomas, 10:10 a.m. to 11:00 a.m. Lecture 2 8-27-08 REVIEW FROM MONDAY (8-25-08) genotyped versus phenotype WT versus mutant Developmental noise, environmental factors and other genes = influence phenotype Model Organisms CHAPTER 2 SINGLE GENE INHERITANCE (8-27-08 chromosome equals one molecule of DNA(humans have 23 chromosomes) features chromosome number = 2-100 per species chromosome size-large variation within genome centromere- the Center telomeres-the caps of chromosomes chromatin-DNA associated nucleosomes Euchromatin-active DNA heterochromatin-inactive DNA chromosome structure, E. coli has 4.6 million base pairs, 1.3 mm humans have 6 billion base pairs, 2 m don't memorize this nucleosomes-first level of DNA packaging include the histone October the histone-solenoid-super coil MENDELIAN ANALYSIS 3:1 ratio self and cross-pollination pure line (homozygous) all self and cross results in same phenotype
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This note was uploaded on 09/28/2008 for the course BIOL 222 taught by Professor Babitzke,paullee during the Fall '07 term at Pennsylvania State University, University Park.

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BIOL 222, Lecture Notes - BIOL 222, Lecture Notes Joshua...

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