Multiple Choice
During which stage of meiosis does synapsis occur?
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9. Mitosis and Meiosis
Meiosis
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Which of the following occurs in meiosis, but not mitosis?
A
Sister chromatids separate during cell division
B
Homologous chromosomes undergo synapsis and crossing over
C
DNA replication precedes cell division
D
The resulting cells are genetically identical to the parent cell
Verified step by step guidance1
Understand the key differences between mitosis and meiosis, focusing on the processes unique to each type of cell division.
Recall that in mitosis, sister chromatids separate during cell division, resulting in two genetically identical daughter cells, while DNA replication occurs before both mitosis and meiosis.
Identify that homologous chromosomes pairing up (synapsis) and exchanging genetic material (crossing over) is a process unique to meiosis and does not occur in mitosis.
Recognize that the resulting cells from mitosis are genetically identical to the parent cell, whereas meiosis produces genetically diverse gametes due to crossing over and independent assortment.
Conclude that the event occurring in meiosis but not mitosis is the synapsis and crossing over of homologous chromosomes.
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