BIOL 1201 Chapter : Chapter 15 Outline 2017
Document Summary
Offspring- all the white eyed flies were male n = 4 visual wild type vs. mutant phenotypes generation time- the alleles were genes and the flies generated very red eye = wild type. White eye flies- first mutation that he worked with. The mutation only runs on the y chromosome- proving that the files with the white eye can only be males. Sex linked genes or traits males- sex linkage means that if the mother is homozygous- the male will get the disease that the mother has because she gives him both x. Daughters get one x chromosome from mom and one x chromosome from dad. Means it becomes recessive and does not take dominance on the chromosome. X-linked recessive expression: female needs two, male needs only one color blindness, muscular dystrophy, hemophilia. X-linked recessive disorders are more common in more frequent = farther apart. 1 centimorgan = 1% recombination frequency for linked genes.
