A non-disjunction in the 1 phase of meiosis will lead to HomeChromosomal Aberrations MCQsA non-disjunction in the 1 phase of meiosis will lead to Q. A non-disjunction in the 1 phase of meiosis will lead to ______________ A. Monosomy B. Nullysomy C. Disomy D. Trtrasomy Answer: Nullysomy