[BIO 122] - Final Exam Guide - Everything you need to know! (85 pages long)

• School: University of Hartford
• Department: Biology - A&S
• Course: BIO 122
• Professor: Andrew Koob

Document Summary

Cytologists worked out the process of mitosis in 1875. Biologists began to see parallels b. w mendel"s proposed hereditary factors and chromosomes. 1902 sutton and boveri and other independently note the parallels and chromosome theory of inheritance began to form. Studied drosophila melanogaster - species of fruit fly. 7 characteristics make fruit flies a convenient organism for genetic studies. Wild type - normal phenotypes that were common in fly populations. Traits alternative to the wild type are mutant phenotypes. Morgan found that body color and wing size are usually inherited together in specific combinations (parental phenotypes) He noted that these genes do not assort independently, and reasoned that they were on the same chromosome. Genes located on the same chromosome that tend to be inherited together are called linked genes. Offspring with a phenotype matching one of the parental phenotypes are called parental types. Offspring with nonparental phenotypes (new combinations of traits) are called recombinant types, or recombinants.