BIO 2133 Lecture Notes - Lecture 15: Dihybrid Cross, Epistasis, Meiosis
22 Mar 2017
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Try not to think of "right" vs "wrong" answer. Eg genetics --> meiosis --> laws of segregation. Now the next midterm is applying concepts not memorizing. Functions not impacting each other, you can see ratios within ratio. Between 9 a-b- and 3a-, bb, that is another 3:1 of the b and the bb. If b doesn"t happen without wildtype a, then b doesn"t matter. Proteins already there form the mom can direct transcription factors. Some genes turned on early and then turned off forever. If you add up to 16 ish 9:3:3:1 = probably heterozygous cross. If ia being expressed --> turns into a. To get to the second processing, need to first turn precursor to h substance. If precursor is not turned into h, o blood type happens. Bombay is where you get stuck trying to convert to h substance. Both precursor and h sub blood will fail to coagulate.
