(a) By using the map function, calculate how many real map units are indicated by a recombinant frequency of 20 percent. Remember that a mean of 1 equals 50 real map units.
(b) If you obtain an RF value of 45 percent in one experiment, what can you say about linkage? (The actual figures are 58, 52, 47, and 43 out of 200 progeny)
(a) 0.2 = 1/2 (1-e^(-m))
(where ^ means "to the exponent")
m=0.51, so ...