LIFESCI 4 Lecture Notes - Lecture 2: Coin Flipping, Pea, H.D.
Document Summary
We can split the genotypes up and write p(rr and yy) Draw punnett squares for each genotype with the parent genotypes being rr and yy respectively. Y - yellow y - green r - wrinkled p(rryy) = p(rr and yy) = p(rr) x p(yy = ( )( ) = 1/16. Only one of the four progeny squares in the rr punnett square contains the genotype rr so the probability of rr is . Only one of the four progeny squares in the yy punnett square contains the genotype yy so the probability of yy is . Example - in coin flipping: the outcome of the first flip is independent of the consecutive flips. The probability of a heads then a tails can be written: p(heads and tails) = x = . We want the progeny to have at least 1 r because a criteria was round . There is only one genotype for green progeny which is yy .
