Anaphase

Q.

In the given figure, certain parts are indicated by letters. Select the answer which contains the correct matching of these letters with the correct parts.

1. A = Spindle, B = Kinetochore, C = Chromosomes

2. A = Chromosomes, B = Spindle, C = Kinetochore

3. A = Kinetochore, B = Spindle, C = Chromosomes

4. A = Kinetochore, B = Chromosomes, C = Spindle

Q.

Which one of the following is the shortest of all stages in mitosis?

1. Prophase

2. Interphase

3. Anaphase

4. Metaphase

Q.

Identify the stage of mitosis by inspecting the image and key changes listed.

Key changes:

* Splitting of chromatids.

* Chromosomes move towards poles.

* Cell constriction appears.

1. Prophase

2. Anaphase

3. Telophase

4. Interphase

Q.

Movement of the chromatids towards the opposite poles of the cell is called:

1. Cytokinesis

2. Metakinesis

3. Prometaphase

4. Karyokinesis

Q.

Match the stages of mitosis listed in column I with the important events pertaining to respective stages given under column II; and choose the answer which gives the correct combination of alphabets of the two columns:

$\begin{array}{cccc}& ColumnIStagesofmitosis& & ColumnIIImportantevents\\ A& \text{Interphase}& p& \text{Equatorial plate formation}\\ B& \text{Metaphase}& q& \text{Daughter chromosomes move to opposite poles}\\ C& \text{Anaphase}& r& \text{Centrioles divde}\\ & & s& \text{Synthetic phase}\end{array}$

1. A = s, B = r, C = p

2. A = s, B = q, C = p

3. A = r, B = s, C = p

4. A = s, B = p, C = q

Q. Anaphase-promoting complex(APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur?

1. Chromosomes will not segregate
2. Chromosomes will be fragmented
3. Recombination of chromosome arms will occur
4. Chromosomes will not condense.

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

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

Q. Phase of shortest duration is

1. Prophase
2. Metaphase
3. Anaphase
4. S-phase

Q. Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur ?

1. Chromosomes will be fragmented
2. Chromosomes will not segregate
3. Recombination of chromosome arms will occur
4. Chromosomes will not condense

Q. Sister chromatids separate during

1. metaphase
2. telophase
3. anaphase
4. prophase