Splitting of centromere occurs in:
1. Mitotic anaphase and Anaphase II
2. Mitotic anaphase and Anaphase I
3. Mitotic metaphase and Metaphase II
4. Mitotic metaphase and Metaphase I
Between Telophase I and Prophase II:
1. The nuclear membrane disappears
2. DNA does not replicate
3. A tetrad of cells is formed
4. There is a long lasting resting stage
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Subtopic: Cell Cycle: Meiosis I |
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Which of the following does not take place during diakinesis of Meiosis I?
1. Disappearance of nucleolus
2. Decondensation of chromosomes
3. Nuclear envelope breaks down
4. Assembly of meiotic spindle
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Subtopic: Cell Cycle: Meiosis I |
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Meiosis in sexually reproducing organisms creates new variations by shuffling the available genetic material and leads to the formation of a recombinant DNA which is created at:
1. Pachytene of Prophase I
2. Diplotene of Prophase I
3. Anaphase I of Meiosis I
4. Anaphase II of Meiosis II
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Subtopic: Cell Cycle: Meiosis I |
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What stage of prophase I of meiosis I:
a. is characterized by the visibility of chiasmata
b. can last for months and years in some vertebrate oocytes
1. Zygotene
2. Pachytene
3. Diplotene
4. Diakinesis
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You want to study the morphology of chromosomes in a cell and you have selected a cell undergoing mitosis. Which stage will be the best for this purpose?
1. Late prophase
2. Metaphase
3. Anaphase
4. Telophase
Which of the following is not a significance of mitosis?
1. Restoration of nuclear/cytoplasmic ratio
2. Growth
3. Reduction of chromosome number
4. Replacement of lost cells