Daily Practice Problems Cell Cycle and Cell Division

Question 1:

Choose the correct options:

1. The phase marked by the arrangement of chromosomes at the equatorial plane is :

(a) Prophase

(b) Metaphase

(d) Telophase

2. The sister chromatids are held together at:

(a) Chromomere

(b) Telomere

(d) Chiasmata

3. A complex formed by a synapsed homologous pair is called:

(a) Tetrad

(b) Bivalent

(d) Both (a) and (b)

4. Which among the following best describes the final outcome of a meiotic division?

(a) Four daughter cells with equal number of chromosomes as that of the parent cell.

(b) Two daughter cells with equal number of chromosomes as that of the parent cell.

(d) Two daughter cells with half the number of total chromosomes as that of the parent cell.

Question 2:

Name the following:

1. The phase in which the duplication of DNA takes place.

2. The stage in which pairing of homologous chromosomes takes place.

3. The term given to the division of nuclear material.

4. The stage between two meiotic divisions.

5. The stage marked by the dissolution of synaptonemal complex.

Question 3:

Fill in the blanks with appropriate words:

1. The plane of alignment of chromosomes during the metaphase is called _____________.

2. The stage in which the splitting of centromere and separation of chromatids occur is called __________.

3. Meiosis is also called __________ division.

4. ___________ are small disc shaped structures on the surface of the centromere that serve as the site of attachment of the spindle fibres.

5. ___________ stage of Prophase I is characterised by the terminalisation of chiasmata.

Question 4:

Complete the given analogies by observing the relation between the first two words and then filling an appropriate word at the fourth place:

1. Plant cells : Cell plate formation :: Animal cells : __________

2. Mitosis : Equational division :: Meiosis : __________

3. Chromosomes arranged at equator : Metaphase :: Chromsomes move to opposite poles : __________

4. Zygotene: Synapsis :: Pachytene : __________

5. Dissolution of synaptonemal complex : Diplotene :: Terminalisation of chiasmata : ___________

Question 5:

Arrange the following stages of Prophase I of Meiosis I in the correct order:

Diakinesis, Diplotene, Leptotene, Pachytene, Zygotene

Question 6:

Define the following terms:

1. Cell Cycle

2. Quiescent stage

3. Synapsis

4. Chiasmata

5. Crossing Over

Question 7:

State whether the following statements are true or false.

1. Interphase accounts for more than 95% of the duration of a cell cycle.

2. Replication of DNA occurs in interkinesis.

3. Plants can undergo mitosis in both haploid and diploid cells.

4. In the oocytes of certain vertebrates, diakinesis can last for months or several years.

5. Liquid endosperm of coconut is an example of karyokinesis which is not followed by cytokinesis.

Question 8:

Match the columns A and B.

Column A	Column B
1. Recombination	a. Mitosis
2. Somatic cells	b. Pachytene
3. Crossing Over	c. Meiosis
4. Pairing of homologous chromosomes	d. Prophase
5. Disappearance of nuclear membrane and nucleolus	e. Zygotene

Question 9:

Draw a diagrammatic overview of cell cycle labelling all its phases.

Question 10:

What happens to the following during the S-phase of the interphase?

1. The number of chromosomes.

2. The DNA content.

Question 11:

What happens to the cells that apparently do not appear to exhibit cell division or the cells that divide occasionally as per the needs of the cells?

Question 12:

Why mitosis is commonly referred to as the “equational division”?

Question 13:

List down the various changes observed in the Prophase stage of the Mitotic phase.

Question 14:

State the mode of cytokinesis observed in the following cells:

1. Plant cells

2. Animal cells

Question 15:

What type of cell division holds a significance in sexual reproduction and why?

Question 16:

List down four key features of the meiotic division.

Question 17:

Briefly describe the various events seen in the Pachytene stage of Prophase I.

Question 18:

State any six points of distinction between Mitosis and Meiosis.

Question 19:

Enumerate any four reasons to justify why meiosis is significant.

Question 20:

What would happen if the ‘S-phase’ of the cell cycle is skipped?

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All About Daily Practice Problems on Class 11 Biology Cell Cycle and Cell Division NCERT Chapter 10

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 11 Biology Cell Cycle and Cell Division NCERT Chapter 10 useful.

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