Phases of Mitosis quiz #2 Flashcards
Phases of Mitosis quiz #2
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The chromosomes begin to unwind and the nuclear envelope re-forms during what phase of mitosis?
The chromosomes begin to unwind and the nuclear envelope re-forms during telophase. Which of the following events characterizes the beginning of anaphase?
The beginning of anaphase is characterized by the separation of sister chromatids. Which events occur during prophase?
During prophase, chromatin condenses into chromosomes, the nucleolus disappears, and the mitotic spindle begins to form. The nuclear envelope breaks down during what phase of mitosis?
The nuclear envelope breaks down during prometaphase. The chromosomes line up along the center of the cell during what phase of mitosis?
Chromosomes line up along the center of the cell during metaphase. In telophase, what happens to the chromosomes?
In telophase, chromosomes decondense back into chromatin, and the nuclear envelope reforms. During which phase do chromosomes line up along the equator of the cell?
Chromosomes line up along the equator of the cell during metaphase. The nuclear membrane reappears during which phase?
The nuclear membrane reappears during telophase. The chromosomes are seen as fully aligned on the cell equator during which phase of mitosis?
Chromosomes are fully aligned on the cell equator during metaphase. During which phase do 46 chromatids line up along the equator of the cell?
During metaphase, chromatids line up along the equator of the cell. How many chromosomes are present during prophase?
The number of chromosomes present during prophase is the same as the original cell, as they are duplicated but not yet separated. A cell in anaphase would have which of the following characteristics?
A cell in anaphase would have sister chromatids being pulled apart to opposite poles. A cell in prophase would have which of the following characteristics?
A cell in prophase would have visible chromosomes, a disappearing nucleolus, and a forming mitotic spindle. If there are 8 centromeres in metaphase, how many chromosomes are there?
If there are 8 centromeres in metaphase, there are 8 chromosomes. To which part of the centromere do mitotic spindle fibers attach during prometaphase?
Mitotic spindle fibers attach to the kinetochore on the centromere during prometaphase. What is similar about metaphase and metaphase I?
Both metaphase and metaphase I involve the alignment of chromosomes at the cell's equator, but in metaphase I, homologous chromosomes align in pairs. Which of the following occurs during metaphase?
During metaphase, chromosomes align at the metaphase plate. During the first part of prophase, what happens to the chromatin?
During the first part of prophase, chromatin condenses into visible chromosomes. What is happening during the G1 phase of the cell cycle?
During the G1 phase, the cell grows and prepares for DNA replication. Where do the microtubules of the spindle originate during mitosis in animal cells?
The microtubules of the spindle originate from the centrosomes in animal cells. What disintegrates during prophase?
The nucleolus disintegrates during prophase. After mitosis (in a human cell), what is the result?
After mitosis in a human cell, two genetically identical diploid cells are produced. What reappears during the telophase stage?
The nuclear envelope and nucleolus reappear during telophase. In what stage do the chromosomes align in the middle?
Chromosomes align in the middle during metaphase. The nuclear membrane dissolves during what phase?
The nuclear membrane dissolves during prometaphase. During metaphase, what is the position of the chromosomes?
During metaphase, chromosomes are aligned at the metaphase plate. A cell in telophase would have which of the following characteristics?
A cell in telophase would have decondensing chromosomes and reforming nuclear envelopes. What's the main thing to remember during prophase?
During prophase, chromatin condenses into visible chromosomes, and the mitotic spindle begins to form. When in mitosis are there twice as many chromatids compared to the original cell's chromosomes?
There are twice as many chromatids during metaphase and anaphase compared to the original cell's chromosomes. The sister chromatids are pulled to opposite poles of the cell during what phase of mitosis?
Sister chromatids are pulled to opposite poles during anaphase. Which of the following events occur during prometaphase of mitosis?
During prometaphase, the nuclear envelope breaks down, and spindle fibers attach to kinetochores. During metaphase, what is the arrangement of chromosomes?
During metaphase, chromosomes are arranged in a single line at the metaphase plate. Which of the following events occurs during prometaphase of mitosis?
During prometaphase, the nuclear envelope breaks down, and spindle fibers attach to kinetochores. During anaphase, what happens to the sister chromatids?
During anaphase, sister chromatids are separated and pulled to opposite poles. Which of the following events occur during prophase?
During prophase, chromatin condenses into chromosomes, the nucleolus disappears, and the mitotic spindle begins to form. Daughter chromosomes migrate to opposite poles of the cell during which phase of mitosis?
Daughter chromosomes migrate to opposite poles during anaphase. Which step do the centriole pairs move to opposite sides of the cell?
Centriole pairs move to opposite sides of the cell during prophase. During which phase do the chromosomes pull apart?
Chromosomes pull apart during anaphase. Which of the following does not occur in prophase (which includes prometaphase)?
Cytokinesis does not occur in prophase or prometaphase. During which phase are the chromosomes separated by being pulled apart?
Chromosomes are separated by being pulled apart during anaphase.
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