Spindle fibers attach to kinetochores of chromosomes during
1. Metaphase
2. Anaphase
3. Telophase
4. Prophase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Select the correct statements.
 
A. Tetrad formation is seen during Leptotene.
B. During Anaphase, the centromeres split and chromatids separate.
C. Terminalization takes place during Pachytene.
D. Nucleolus, Golgi complex and ER are reformed during Telophase. 
E. Crossing over takes place between sister chromatids of homologous chromosome.

Choose the correct answer from the options given below:
1. B and E only 2. A and C only
3. B and D only 4. A, C and E only
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis I |
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Doubling of the number of chromosomes can be achieved by disrupting mitotic cell division soon after:
1. Anaphase 2. Telophase
3. Prophase 4. Metaphase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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During which stages of mitosis and meiosis, respectively, does the centromere of each chromosome split?
1. Metaphase, Metaphase II 2. Prophase, Telophase I
3. Telophase, Anaphase I 4. Anaphase, Anaphase II
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis II |
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Which one of the following never occurs during mitotic cell division? 
1. Coiling and condensation of chromatids 
2. Spindle fibres attach to Kinetochores of chromosomes 
3. Movement of centrioles towards opposite poles 
4. Pairing of homologous chromosomes
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Select the incorrect statement with reference to mitosis.
1. Splitting of centromere occurs at anaphase.
2. All the chromosomes lie at the equator at metaphase.
3. Spindle fibres attach to centromere of chromosomes.
4. Chromosomes decondense at telophase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Given below are two statements : One is labeled as Assertion (A) and the other is labeled as Reason (R) 

Assertion (A):  The growth of the multicellular organism is due to mitosis 
Reason (R):  Mitosis is also called as equational division and it offers genetic stability 

 
In light of the above statements choose the correct answer from the options given below: 

1. (A) is correct but (R) is not correct.
2. (A) is not correct but (R) is correct.
3. Both (A) and (R) are correct and (R) is the correct explanation of (A).
4. Both (A) and (R) are correct but (R) is not the correct explanation of (A).
Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
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With respect to metaphase, which of the following statements is incorrect ?
1. Complete disintegration of nuclear envelope takes place.
2. Chromosomes are highly condensed.
3. Metaphase chromosomes are made up of four sister chromatids held together by centromere.
4. Chromosomes lie at the equator of the cell.
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Attachment of spindle fibers to kinetochores of chromosomes becomes evident in:

1. Anaphase 2. Telophase
3. Prophase 4. Metaphase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Which of the following options gives the correct sequence of events during mitosis?

1. Condensation, nuclear membrane disassembly, arrangement at the equator, centromere division, segregation, telophase
2. Condensation, crossing over, nuclear membrane disassembly, segregation, telophase
3. Condensation, centromere division, segregation, arrangement at the equator, telophase
4. Condensation, nuclear membrane disassembly, crossing over, segregation, telophase

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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