杂种、奇倍性多倍体、偶倍性异源多倍体的单倍体、二倍体的单倍体等,因减数分裂时,染色体联会紊乱,一般不能形成有效配子,表现为高度不育,但也存在可育的可能性,只不过几率很小罢了。单倍体动物是可育的,而且都是雄性。从理论上来说,高等植物偶倍性同源多倍体的单倍体,具有一定的可育性。 Hybrids, heteroploid polyploidy, diploid allopolyploid haploid, diploid haploid, etc., due to meiosis, the chromosome association disorder, generally can not form a valid gamete, the performance of Highly sterile, but there is also the possibility of fertility, but only a very small chance. Haploid animals are fertile and are all male. In theory, haploid polyploidy haploid plants of higher plants, have some fertility.