Răspuns:
Răspuns:
P: MMRR×mmrr
g: MR × mr
F1: MmRr×MmRr
g: MR Mr mR mr × MR Mr mR mr
F2 MR Mr mR mr
MR MMRR MMRr MmRR MmRr
Mr MMRr MMrr MmRr Mmrr
mR MmRR MmRr mmRR mmRr
mr MmRr Mmrr mmRr mmrr
=> a) 0%
=> b) 9/16 fenotip dominant (mari, rosii), 6/16 fenotip partial dominant (3/16 mari, galbene; 3/16 mici, rosii), 1/16 fenotip recesiv (mici, galbene)
c) determinati procentul merelor rosii din F2
9/16 mari, rosii }
3/16 mici, rosii }=> 12/16 rosii=> 3/4 rosii=> 75% rosii.