Multiple Choice
Which structure containing four chromatids forms during meiosis and is essential for crossing over?
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9. Mitosis and Meiosis
Meiosis
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Which process halves the number of chromosomes per cell, resulting in the formation of gametes?
A
DNA replication
B
Fertilization
C
Meiosis
D
Mitosis
Verified step by step guidance1
Understand that the question is asking about a biological process that reduces the chromosome number by half to form gametes (sex cells).
Recall that DNA replication is the process of copying DNA before cell division, so it does not reduce chromosome number.
Recognize that fertilization is the fusion of two gametes, which actually restores the chromosome number rather than reducing it.
Know that mitosis is a type of cell division that produces two identical daughter cells with the same chromosome number as the parent cell, so it does not halve chromosomes.
Identify meiosis as the specialized cell division process that reduces the chromosome number by half, producing haploid gametes from diploid cells.
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