Bio 101 Notes Mutation And Variationcut Objective 26!!

This study source was downloaded by 100000859819779 from CourseHero.com on 01-11-2023 01:55:02 GMT -06:00https://www.coursehero.com/file/8146387/Bio-101-Class-Notes/ Bio 101 NotesMUTATION AND VARIATIONCUT OBJECTIVE 26!!!NON-MENDELIAN INHERITANCE- Mendelian = Complete Dominance- Only the dominant alleles protein is produced- When a yellow and purple parent produce a purple offspring- Not all traits are simply determined by a single dominant and a single recessive allele. - Incomplete Dominance (see Dianas picture) - A little of each alleles protein is produced. - Codominance- A lot of each alleles protein is produced. - Polygenic - Multiple genes determine the trait- Eye color- Bell Peppers- Colon Cancer - Human needs to have mutations in about 7 different genes. - Sex-Linked Traits- Gene for trait is on portion of X chromosomes not matched by Y COMPLEXITY- Variable Expression: All cells in an organism have the same genes, but only some are used. - Muscle Cell- Pancreatic Cell - Molecular bookmarks are put in each cells DNA to indicate which genes should be active. - Modifier Genes: Some genes can modify the effect of another gene.- Albino: Gene stops production of pigment proteins- Master Control Genes: Activate numerous genes to control complex tasks- Environmental Effects: A cells surroundings can impact how genes