Back to CELL-CYCLE & CELL DIVISION

Your Progress

0 / 168 Answered

Correct

Incorrect

Accuracy

NEET • BIOLOGY • CELL-CYCLE & CELL DIVISION

Cell-cycle & cell division practice · Mixed difficulty

Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.

Practice format and chapter quiz

The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.

Take a chapter quiz →

Showing 31-60 of 168 questions

31 Medium

31 of 168

Analyzing +4 | -1

Analyze the events occurring during every stage of the cell cycle, how the amount of DNA content
(C) per cell changes and select the correct option.

View answer and explanation

Correct option: D

Both 1 and 2

Option A (DNA content becomes doubled during S phase of cell cycle) is correct because DNA replication occurs during S phase, leading to the doubling of DNA content.

32 Medium

32 of 168

Remembering +4 | -1

After the separation of centromeres during mitosis, the chromatids move towards opposite poles of the spindle. Name the term used for these chromatids

View answer and explanation

Correct option: A

Daughter chromosomes

Option A (Daughter chromosomes) is correct because after centromere separation, each chromatid is considered a daughter chromosome.

33 Easy

33 of 168

Understanding +4 | -1

Assertion: Cell growth results into division
Reason: Cell growth leads to change in nucleocytoplasmic
ratio

View answer and explanation

Correct option: A

If both the assertion and the reason are true and the
reason is a correct explanation of the
assertion.

Option A (If both the assertion and the reason are true and the reason is a correct explanation of the assertion) is correct because cell growth increases the nucleocytoplasmic ratio, triggering cell division.

34 Easy

34 of 168

Remembering +4 | -1

The division of the cytoplasm is termed as

View answer and explanation

Correct option: C

Cytokinesis

Option C (Cytokinesis) is correct because cytokinesis specifically refers to the division of the cytoplasm following nuclear division (karyokinesis).

35 Hard

35 of 168

Remembering +4 | -1

Dyad cells were observed in?

View answer and explanation

Correct option: B

Telophase-I

Option B (Telophase-I) is correct because dyad cells, which are cells containing two chromatids joined at the centromere, are observed after meiosis I, specifically in telophase I.

36 Medium

36 of 168

Remembering +4 | -1

Separation of linked genes is called

View answer and explanation

Correct option: C

Crossing over

Option C (Crossing over) is correct because it is the process by which linked genes are separated through the exchange of genetic material during meiosis.

37 Medium

37 of 168

Understanding +4 | -1

Select the matched ones.
I . S-phase - DNA replication
II. Zygotene - Synapsis
III. Diplotene - Crossing over
IV. Meiosis - Both haploid and diploid cells
V G_2-phase - Quiescent stage

View answer and explanation

Correct option: A

I and II only

Option A (I and II only) is correct because S-phase is indeed for DNA replication, and Zygotene is when synapsis occurs. Diplotene is marked by the dissolution of the synaptonemal complex and the appearance of chiasmata, not crossing over itself (crossing over happens in Pachytene). Meiosis results in haploid cells, not both haploid and diploid. G2 phase prepares the cell for mitosis; Quiescent stage is G0.

38 Medium

38 of 168

Remembering +4 | -1

Chromatid formation takes place in

View answer and explanation

Correct option: A

S-phase

The correct answer is A (S-phase) because chromatid formation, which involves DNA replication, occurs during the S phase of the cell cycle.

39 Medium

39 of 168

Understanding +4 | -1

Which of the following statements are correct for multicellular cell division?
I. Cell division brings about embryonic development and growth
II. It plays a role in repair and maintenance of the body
III. It is important for reproduction
The correct option is

View answer and explanation

Correct option: D

I, II and III

Option D (I, II and III) is correct because all three statements accurately describe the roles of multicellular cell division.

40 Medium

40 of 168

Remembering +4 | -1

I. …A… phase corresponds to the interval between mitosis and initiation of DNA replication
II. In animal cells, during the …B… phase, DNA replication begins in the nucleus and the centriole duplicates in the cytoplasm
III. During the …C… phase, proteins are synthesized for the preparation of mitosis, while cell growth continues
Identify the blanks (A-C) to complete the given statements (I-III) with reference to NCERT textbook

View answer and explanation

Correct option: D

A-G_1, B-S, C-G_2

Option D (A-G_1, B-S, C-G_2) is correct because it accurately describes the events occurring in each phase as per the NCERT textbook.

41 Easy

41 of 168

Understanding +4 | -1

What is the essential criterium for growth of organisms?

View answer and explanation

Correct option: C

Cell division

Option C (Cell division) is correct because cell division is essential for increasing cell number and thus for the growth of organisms.

42 Medium

42 of 168

Remembering +4 | -1

The proteins involved in the movement of chromosomes towards the poles during cell division are

View answer and explanation

Correct option: C

Tubulin

Option C (Tubulin) is correct because tubulin is the protein that forms microtubules, which are the main component of spindle fibers responsible for chromosome movement.

43 Medium

43 of 168

Remembering +4 | -1

Crossing over occurs at

View answer and explanation

Correct option: C

Four strand stage

Option C is correct because crossing over occurs at the four-strand stage, when the homologous chromosomes have duplicated to form tetrads.

44 Easy

44 of 168

Remembering +4 | -1

Small disc-shaped structures at the surface of the centromeres that appear during metaphase are

View answer and explanation

Correct option: A

Kinetochores

Option A (Kinetochores) is correct because kinetochores are disc-shaped structures on centromeres where spindle fibers attach.

45 Hard

45 of 168

Remembering +4 | -1

Diakinesis is marked by

View answer and explanation

Correct option: D

All of the above

Option D (All of the above) is correct because diakinesis, the final stage of prophase I in meiosis, is marked by terminalization of chiasmata, degeneration of the nucleolus, and chiasmata shifting towards chromosome ends.

Explore Other Chapters in BIOLOGY

View All →

ANIMAL KINGDOM 756 MCQs PLANT KINGDOM 415 MCQs ANATOMY OF FLOWERING PLANTS 404 MCQs MOLECULAR BASIS OF INHERITANCE 404 MCQs CHEMICAL COORDINATION AND INTEGRATION 387 MCQs PRINCIPLE OF INHERITANCE AND VARIATION 374 MCQs

46 Medium

46 of 168

Understanding +4 | -1

Mitosis or the equational division is usually restricted to …A… cells. However, in some lower plants and in some social insects …B… cells also divide by mitosis.
Choose the correct option for A and B from the given options
A B

View answer and explanation

Correct option: D

Diploid; haploid

Option D (Diploid; haploid) is correct because mitosis is usually restricted to diploid cells, but in some lower plants and social insects, haploid cells can also divide by mitosis.

47 Medium

47 of 168

Remembering +4 | -1

Spindle fibres formation is not observed in

View answer and explanation

Correct option: D

Amitosis

Option D (Amitosis) is correct because spindle fiber formation is not observed in amitosis, which is a direct cell division method.

48 Hard

48 of 168

Remembering +4 | -1

The post mitotic phase of the cell in which active synthesis of RNA and proteins takes place is:

View answer and explanation

Correct option: D

G_1

-phase

Option D (

G_1

-phase) is correct because the

G_1

phase is characterized by active synthesis of RNA and proteins for cell growth.

49 Medium

49 of 168

Understanding +4 | -1

Statement-I (S-I): Growth disturbs nucleocytoplasmic ratio.

Statement-II (S-II): Cell division occurs to restore nucleocytoplasmic ratio.

View answer and explanation

Correct option: A

Both Statement-I and Statement-II are true

Option A (Both Statement-I and Statement-II are true) is correct because cell growth does disturb the nucleocytoplasmic ratio, and cell division occurs to restore it.

50 Hard

50 of 168

Remembering +4 | -1

Micro tubules are absent in?

View answer and explanation

Correct option: A

Mitochondria

Option A (Mitochondria) is correct because mitochondria have their own DNA and ribosomes and do not contain microtubules.

51 Easy

51 of 168

Remembering +4 | -1

Sequence of four phases of cell cycle is

View answer and explanation

Correct option: A

{G_1} \to S \to {G_2} \to M

Option A (

{G_1} \to S \to {G_2} \to M

) is correct because this is the correct sequence of the four phases of the cell cycle.

52 Easy

52 of 168

Understanding +4 | -1

In which of the following stages of the cell cycle chromosome number becomes half?

View answer and explanation

Correct option: B

Anaphase-I

Option B (Anaphase-I) is correct because the chromosome number is halved during anaphase I of meiosis when homologous chromosomes are separated and pulled to opposite poles.

53 Easy

53 of 168

Understanding +4 | -1

Select the correct option

View answer and explanation

Correct option: B

Division of the nucleus occurs before the division of the cytoplasm

Option B (Division of the nucleus occurs before the division of the cytoplasm) is correct because karyokinesis (nuclear division) typically precedes cytokinesis (cytoplasmic division).

54 Easy

54 of 168

Remembering +4 | -1

Karyokinesis refers to the division of

View answer and explanation

Correct option: B

The nucleus

Option B (The nucleus) is correct because karyokinesis specifically refers to the division of the cell's nucleus during cell division.

55 Medium

55 of 168

Understanding +4 | -1

Which type of cell division occurs in the gonads

View answer and explanation

Correct option: C

Both 1 and 2

Option C (Both 1 and 2) is correct because gonads undergo both mitosis for cell proliferation and meiosis for gamete formation.

56 Medium

56 of 168

Understanding +4 | -1

Which of the following structure will not be common to mitotic cell of a higher plant

View answer and explanation

Correct option: C

Centriole

Option C (Centriole) is correct because higher plant cells do not have centrioles, which are involved in spindle fiber organization in animal cells.

57 Medium

57 of 168

Remembering +4 | -1

Amitosis is the usual process of cell division

View answer and explanation

Correct option: B

Prokaryotic cells

Option B (Prokaryotic cells) is correct because amitosis is the typical cell division method in prokaryotes.

58 Hard

58 of 168

Understanding +4 | -1

Assertion (A): Smaller cells are usually metabolically active cells.
Reason (R): Smaller cells have higher nucleocytoplasmic ratio and higher surface volume ratio.

View answer and explanation

Correct option: A

If both A and R are true and R is the correct explanation of A

Option A (If both A and R are true and R is the correct explanation of A) is correct because smaller cells are more metabolically active due to their higher surface area to volume ratio and nucleocytoplasmic ratio.

59 Hard

59 of 168

Remembering +4 | -1

Mitosis can be inhibited by

View answer and explanation

Correct option: B

colchicine

Option B (colchicine) is correct because colchicine inhibits mitosis by disrupting microtubule formation.

60 Easy

60 of 168

Remembering +4 | -1

The transition between meiosis-I and meiosis-II is

View answer and explanation

Correct option: A

Interkinesis

Option A is correct because interkinesis is the brief interphase-like period between meiosis I and meiosis II, where no DNA replication occurs.

Revision notes and key takeaways

Review CELL-CYCLE & CELL DIVISION in your textbook or class notes, then use this set to check your understanding.

Showing 31-60 of 168 questions

Continue Your Practice

📚 Switch Set (ALL)

Chapter Sets

ALL 168 MCQs EASY 46 MCQs HARD 43 MCQs MEDIUM 79 MCQs

0 /168

0✓ 0✗

0% Accuracy