The phase of the cell cycle during which DNA replication takes place is:

 

1.	G1 phase	2.	S phase
3.	G2 phase	4.	M phase

The correct chronology of stages of karyokinesis in mitosis is:

1. Prophase – Anaphase – Metaphase – Telophase

2. Prophase – Metaphase – Anaphase – Telophase

3. Prophase – Metaphase – Telophase – Anaphase

4. Telophase – Anaphase – Metaphase – Prophase

The centrosome duplicates during:

Prophase of mitosis is not characterized by:

1. condensation of chromatin

2. migration of centrosomes to opposite poles

3. formation of mitotic apparatus

4. pairing of homologous chromosomes

Cells at the end of prophase, when viewed under the microscope, show:

Identify the stage of mitosis shown in the given diagram:

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

The start of the second phase of mitosis, metaphase, is marked by:

1. complete disintegration of the nuclear envelope

2. alignment of chromosomes at the equatorial plate

3. de-condensation of chromatin

4. reappearance of the nucleolus

Consider the given two statements:

1. Both I and II are True and II explains I

2. Both I and II are True but II does not explain I

3. I is True but II is False

4. I is False but II is True

The phase of the cell cycle that lasts for the least time is the:

All the following key events take place during telophase of mitosis except:

1. Chromosomes cluster at the opposite spindle poles

2. Chromosomes become discrete

3. Nuclear envelope reforms

4. Nucleolus, ER and Golgi complex reform