BIOA01H3 Lecture Notes - Punnett Square, Mendelian Inheritance, Dihybrid Cross

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Mark Fitzpatrick

Document Summary

Genetics: human karyotypes are used to show all the chromosomes in a cell. They can detect chromosomal abnormalities such as a missing chromosome. Staining these chromosomes reveal a banding pattern that is unique to that chromosome, which allows for identification, called g-banding. karyotypes are mostly created with blood or fetal, although any tissue can be used. Aa allele- form of a gene located on a chromsome, such as the letter a in aa purebred- having descnded from common ancestors where all share similar traits, such as size. P generation- the parent generation, with all of the original traits, such as mother aa, dad. F1 generation- offspring from the cross of p generation, first filial generation, such as ab. F2 generation- offspring from cross of f1 generation, second filial generation, such as aa. Dominant allele- where the traits are always expressed in an individual, such as brown eyes. Recessive allele- having an allele that is present but inactive such as blue eyes.