Multiple Choice
What occurs during crossing over in meiosis?
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12. Meiosis
Genetic Variation During Meiosis
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In what stage of meiosis does genetic variation primarily occur due to crossing over?
A
Prophase I
B
Anaphase I
C
Telophase I
D
Metaphase I
Verified step by step guidance1
Understand that meiosis is a type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell.
Recognize that genetic variation in meiosis is primarily introduced through two processes: crossing over and independent assortment.
Crossing over is the exchange of genetic material between homologous chromosomes and occurs during a specific stage of meiosis.
Identify that crossing over occurs during Prophase I of meiosis, where homologous chromosomes pair up and exchange segments of genetic material.
Conclude that Prophase I is the stage where genetic variation is primarily introduced due to the process of crossing over.
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