Meiosis is the generation of germ cells (eggs and sperm). In meiosis, DNA replication is followed by two division cycles: meiosis I, which segregates homologous chromosomes and meiosis II, which ...

Null alleles are common in S-locus genotyping (for example, Holderegger et al., 2008; Dreesen et al., 2010) and may lead to underestimation of the true allele number.