Comment on

• Susceptible chiasmate configurations of chromosome 21 predispose to non-disjunction in both maternal meiosis I and meiosis II.

  Lamb NE, Freeman SB, Savage-Austin A, Pettay D, Taft L, Hersey J, Gu Y, Shen J, Saker D, May KM, Avramopoulos D, Petersen MB, Hallberg A, Mikkelsen M, Hassold TJ, Sherman SL. Lamb NE, et al. Nat Genet. 1996 Dec;14(4):400-5. doi: 10.1038/ng1296-400. Nat Genet. 1996. PMID: 8944019
• Spontaneous X chromosome MI and MII nondisjunction events in Drosophila melanogaster oocytes have different recombinational histories.

  Koehler KE, Boulton CL, Collins HE, French RL, Herman KC, Lacefield SM, Madden LD, Schuetz CD, Hawley RS. Koehler KE, et al. Nat Genet. 1996 Dec;14(4):406-14. doi: 10.1038/ng1296-406. Nat Genet. 1996. PMID: 8944020