Scelta multipla
Which of the following best represents the chromosomal composition of one daughter nucleus at telophase of mitosis in a diploid cell with 2n = 4?
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11. Cell Division
Phases of Mitosis
Scelta multipla
During which phase of mitosis do chromatid pairs become visible, spindle fibers begin to form, and the nuclear membrane disappears?
A
Telophase
B
Anaphase
C
Prophase
D
Metaphase
Guida verificata passo dopo passo1
Step 1: Understand the phases of mitosis. Mitosis is divided into several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct characteristics and events.
Step 2: Focus on prophase. During prophase, chromatid pairs condense and become visible under a microscope. This is a key feature of this phase.
Step 3: Note the formation of spindle fibers. Spindle fibers begin to form during prophase, which are essential for separating chromatids later in mitosis.
Step 4: Observe the nuclear membrane. The nuclear membrane starts to break down and disappear during prophase, allowing the spindle fibers to interact with the chromosomes.
Step 5: Compare the events of prophase with other phases. For example, metaphase involves alignment of chromosomes at the cell's equator, anaphase involves separation of chromatids, and telophase involves reformation of the nuclear membrane. These events are distinct from prophase.
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