Problem:
The n+1 female gametophytes (embyro sacs, i.e. like "eggs") produced by trisomic plants are usually more viable than the n+1 male gametes (pollen grains, i.e. like "sperm"). If 50% of the functional embyro sacs of selfed trisomic plant are n+1, but only 10% of the functional pollen grains are n+1,
Required:
Question: what percentage of the offspring will be:
(a) tetrasomic?
(b) trisomic?
(c) diploid i.e. disomic?
Give reasoning with your answer.