Multiple Choice
What major event occurs during the S phase of the cell cycle?
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11. Cell Division
Introduction to the Cell Cycle
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What would happen to the daughter cells if the G2 phase of the parent cell is shortened?
A
The daughter cells would have less cytoplasm.
B
The daughter cells might have errors in chromosome segregation.
C
The daughter cells would have incomplete DNA replication.
D
The daughter cells would be larger than normal.
Verified step by step guidance1
Understand the role of the G2 phase in the cell cycle. The G2 phase is a period of growth and preparation for mitosis, where the cell checks for DNA damage and ensures all proteins needed for cell division are present.
Consider the consequences of a shortened G2 phase. If the G2 phase is shortened, the cell may not have enough time to repair DNA damage or complete the synthesis of necessary proteins.
Analyze how incomplete preparation during the G2 phase could affect mitosis. Without proper preparation, errors in chromosome segregation might occur during mitosis, leading to daughter cells with incorrect chromosome numbers.
Evaluate the impact of errors in chromosome segregation. Chromosome segregation errors can result in aneuploidy, where daughter cells have an abnormal number of chromosomes, potentially leading to cell malfunction or disease.
Conclude that a shortened G2 phase could lead to errors in chromosome segregation, as the cell may not have adequately prepared for mitosis, affecting the genetic stability of the daughter cells.
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