✓ Correct answer: C. Non-disjunctionNon-disjunction is a type of mutation that can occur during meiosis, the process of cell division that produces reproductive cells (gametes). Normally, during meiosis, chromosomes segregate and are evenly distributed into the resulting gametes. However, non-disjunction occurs when chromosomes fail to separate properly, leading to an abnormal number of chromosomes in the resulting gametes.<br/><br/>Option A (Replication) refers to the process of DNA replication, which occurs prior to cell division. Replication is necessary for the accurate duplication of genetic material, but it does not directly affect the number of chromosomes in the offspring.<br/><br/>Option B (Translation) is the process by which ribosomes synthesize proteins using the genetic information carried by messenger RNA (mRNA). Translation is not directly related to the number of chromosomes in the offspring.<br/><br/>Option D (Frame shift) is a type of mutation that involves the insertion or deletion of nucleotides in a DNA sequence. Frame shift mutations can alter the reading frame of codons and result in changes to the entire sequence of amino acids in a protein. However, frame shift mutations do not directly cause an abnormal number of chromosomes in the offspring.
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