Attachment of spindle fibers to kinetochores of chromosomes becomes evident in :

1. Anaphase

2. Telophase

3. Prophase

4. Metaphase

Which of the following options gives the correct sequence of events during mitosis?

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

A stage in cell division is shown in the figure. Select the answer which gives the correct identification of the stage with its characteristics:
 

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres :
1.  Metaphase-II
2.  Anaphase-I
3.  Anaphase-II
4.  Metaphase-I

At metaphase, chromosomes are attached to the
spindle fibres by their :
1. Centromere
2. Satellites
3. Secondary constrictions
4. Kinetochores

During mitosis ER and nucleolus begin to disappear at

1. late prophase

2. early metaphase

3. late metaphase

4. early prophase

Which stages of cell division do the following figures A and B represent respectively? 

1. Metaphase- Telophase
2. Telophase- Metaphase
3. Late anaphase- Prophase
4. Prophase- Anaphase