Arrange the following cellular events in the correct chronological sequence leading to the formation of a trisomic zygote due to non-disjunction during Meiosis I:\n1. Alignment of homologous chromosome pairs at the metaphase plate.\n2. Failure of homologous chromosomes to separate during Anaphase I.\n3. Formation of gametes containing an extra chromosome (n+1).\n4. Fertilization of the aneuploid gamete by a normal haploid gamete.\nSelect the correct sequence using the codes given below:

Options:

• A: 1-3-2-4
• B: 2-1-3-4
• C: 1-2-3-4
• D: 2-3-1-4

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