객관식
In a typical proliferating eukaryotic cell, which phase of the cell cycle is usually the longest?
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16. Cell Division
Overview of the Cell Cycle
객관식
In the context of the eukaryotic cell cycle (including DNA replication and mitosis), what is the typical end result of one complete cell cycle starting from a single parent cell?
A
Two genetically different daughter cells, each with double the chromosome number of the parent cell
B
Two genetically identical daughter cells, each with the same chromosome number as the parent cell
C
Four genetically distinct daughter cells, each with half the chromosome number of the parent cell
D
One daughter cell with half the chromosome number of the parent cell
검증된 단계별 안내1
Step 1: Understand the phases of the eukaryotic cell cycle, which include interphase (G1, S, G2 phases) and the mitotic phase (mitosis and cytokinesis).
Step 2: Recognize that during the S phase of interphase, DNA replication occurs, doubling the amount of DNA but not changing the chromosome number; each chromosome now consists of two sister chromatids.
Step 3: During mitosis, the sister chromatids are separated into two nuclei, ensuring that each daughter nucleus receives an identical set of chromosomes.
Step 4: Cytokinesis divides the cytoplasm, resulting in two separate daughter cells.
Step 5: Conclude that the end result of one complete cell cycle is two genetically identical daughter cells, each with the same chromosome number as the original parent cell.
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