Mitosis

Q.

In which stage do the chromosome undergo duplication?

Q.

Differentiate between G₁ phase and G₂ phase.

Q.

Is the mitotic division in plants seen in haploid cells only?

Q.

What are the two components of chromatin?

Q.

How many chromosomes are left after replication?

Q.

Which is the final stage of karyokinesis?

Q. Identify the correct sequence for the stages in mitosis.

1. Interphase $\to$ Prophase $\to$ Metaphase $\to$ Anaphase $\to$ Telophase
2. Metaphase $\to$ Anaphase $\to$ Telophase $\to$ Interphase $\to$ Prophase
3. Anaphase $\to$ Telophase $\to$ Interphase $\to$ Prophase $\to$ Metaphase
4. Prophase $\to$ Metaphase $\to$ Anaphase $\to$ Telophase $\to$ Interphase

Q.

In which stage of mitosis, chromosomes get aligned at the equator?

1. Prophase

2. Metaphase

3. Anaphase

4. Telophase

Q. Which of the following event does not involve mitosis?

1. Development of an organism
2. Growth of an organism
3. Production of gametes
4. Tissue repair

Q.

Do females have 23 pairs of homologous chromosomes?

Q.

What is the Purpose of Cytokinesis?

Q.

Cytokinesis is a division of cytoplasm.

1. True
2. False

Q. Centrioles duplicate during _______ to facilitate cell division.

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

Q. Match the stages of mitosis to its respective events.

1. Chromosome formation
2. Spindle formation
3. Chromatids separate
4. Chromatin formation

Q. Cytokinesis in plant and animal cells take place in a similar way.

1. True
2. False

Q. Which of the following is not true about karyokinesis?

1. It is the division of nucleus.
2. Cytoplasmic division is called karyokinesis.
3. Karyokinesis starts with condensation of chromosomes.
4. Centrioles and spindle fibers help in karyokinesis.

Q. Cytoplamic division during cell cycle is called .

1. cytokinesis
2. mitosis
3. karyokinesis

Q. Mitosis

1. Leads to recombinant daughter cells
2. Is a reduction division
3. Leads to formation of parental type of daughter cells
4. Occurs in gametes

Q.

How does an organism get a pair of homologous chromosomes?

Q. Sort the phases of mitosis.

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

Q. The term cytokinesis is associated with the division of

1. nucleus
2. cytoplasm
3. chromosomes
4. DNA

Q. DNA must be present in the form of for it to synthesise RNA.

1. chromatid
2. chromosome
3. nucleosome
4. chromatin

Q. Which cell division is required for the growth and repair of the body and which type is involved in the formation of gametes?
[2 Marks]

Q.

Which factor remains constant even after the S phase has taken place?

Q. The stage at which morphology of chromosomes is easily studied is the stage during which

1. Spindle fibres attach to kinetochores of chromosomes
2. Nucleolus, Golgi complex and ER reform
3. Centromeres split and chromatids separate
4. DNA duplicates

Q. Which cell division is required for the growth and repair of the body and which type is involved in the formation of gametes?
[2 Marks]

Q.

What are chromatids?