By Marwa, Michelle A, Amna PUNNETT SQUARES By Marwa, Michelle A, Amna

Monohybrid vs. Dihybrid cross Monohybrid: A cross between two individuals with two versions of one trait. Example: SS x ss (spherical vs. wrinkled seed) Dihybrid: A cross between two individuals with varying versions of two or more traits Example: SsYy x ssyy (spherical vs. wrinkled & yellow vs. green)

Mendel’s Monohybrid Cross Parental (P) generation: SS x ss S S s F1 generation: S s S s S F2 generation: s Mendel’s Monohybrid Cross

Blood type http://nybloodcenter.org/donate-blood/blood-facts/blood-types/

http://www.dnacenter.com/science-technology/dna-history-1920.html O ii NONE A + B O, A, AB, B http://www.dnacenter.com/science-technology/dna-history-1920.html

JUDGE JUDY Case of paternity fraud: YOU’RE THE JUDGE!

Paternity case Kim’s parents blood type: AA x OO A A O What is Kim’s phenotype? ______ What is her genotype? _______ Kim’s child’s phenotype: O Paternity case

Paternity case Kim x Kanye AO x B_ A O A O

25 % Kanye’s phenotype is BO If the child has blood type O, what percent chance is the child Kanye’s? 25 %