In pumpkin Hlarge hh small O bright orange oooff white R r

In pumpkin: H_-=large, hh small O_- = bright orange, oo-off white R_- = resistant to caterpillars, rr-susceptible Map: O--5mu--H 10mu R Interference-o.6 cross: ohR//oHr x ohr//ohr.//= haplotypes How many plants producing bright orange, large and resistant pumpkins do you expect out of 1000 progeny? 2 3 4 1 5

Solution

3 plants producing Bright Orange, large and resistant pumpkins, because parental types are recovered, the two genes must be tightly linked and recombination must be very rare.