No Bell Work today! Set up the next page in your journal… Page: 45 Date: 12-9-15 Title: Genetics – Codominance Essential Question: How can I predict genetic.

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Presentation transcript:

No Bell Work today! Set up the next page in your journal… Page: 45 Date: Title: Genetics – Codominance Essential Question: How can I predict genetic outcomes of non-Mendelian traits?

Codominance: when the genotype is heterozygous, both phenotypes appear equally Codominance produces spots, stripes, etc. Note: when writing we show this with two different capital letters

1. A certain type of flower can be purple, white, or spotted. What would be the phenotypic outcome for two spotted flowers that were bred together? P W P W PP PW WW PP = Purple PW = Spotted WW = White DAD = PW MOM = PW 25% purple, 50% spotted, 25% white

Blood Type is trait that is both codominant and has multiple alleles (meaning more than two). * A and B are codominant, O is recessive. * Can also be written as I A I B for Type AB blood, ii for Type O, etc. Blood Type You can GIVE blood to… You can RECEIVE blood from… AA or ABA or O BB or ABB or O ABAB only!Anyone OAll typesO only!

3. What would be the expected phenotypes if a woman heterozygous for type A blood and a type AB man had children? AB A O AA AB AOBO AA, AO = Type A AB = Type AB BB, BO = Type B OO = Type O DAD = AB MOM = AO 50% Type A, 25% Type AB, 25% Type B

For the rest of today… Complete your Blood Typing worksheet. Anything you don’t finish in class today is HOMEWORK!