Sex Linked Genes - Exam#1 W 2/6 in class(bring cheat sheet...

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Unformatted text preview: Exam #1 W 2/6 in class (bring cheat sheet) Review T 2/5 from 5-7pm in PAI 3.02 Phenotype Genotype Genes code for proteins (or RNA). These gene products give rise to traits… It is rarely this simple. Vision: optic nerves must connect to brain Absence of light during early development causes permanent inabilities to interpret visual signals. Searched for gene using blind mice… Genes such as BDNF and GAD65 are turned on by visual stimulus. Without these genes, neurons do not properly connect. Environment changes gene expression; gene expression changes perception of environment. Phenotype Genotype Genes code for proteins (or RNA). These gene products give rise to traits… It is rarely this simple. X/Y chromosomes in humans: genes = traits Sex determination is normally inherited by whole chromosomes or by number of chromosomes. CB 15.9 X/Y chromosomes in humans CB 15.9 The X chromosome has many genes; the Y chromosome only has genes for maleness.for maleness....
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This note was uploaded on 03/18/2008 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas.

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Sex Linked Genes - Exam#1 W 2/6 in class(bring cheat sheet...

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