Class 10/Question Bank
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Questions on Cell Cycle and Cell Divisions
Choose the correct answer from the given options.
The cell cycle is an ordered series of events that leads to: a) Cell death b) Cell division and DNA duplication c) Protein synthesis only d) RNA formation
Which phase of the cell cycle is the longest? a) G1 phase b) S phase c) Interphase d) M phase
During which phase does DNA replication occur? a) G1 phase b) S phase c) G2 phase d) M phase
What happens during G1 phase? a) DNA replication b) Cell grows and synthesizes proteins c) Cell division d) Nuclear envelope breaks down
The G2 phase is characterized by: a) DNA replication b) Cell growth and protein production for division c) Chromosome condensation d) Spindle fiber formation
Mitosis results in how many daughter cells? a) One b) Two c) Three d) Four
The daughter cells produced by mitosis are: a) Genetically different b) Genetically identical c) Haploid d) Polyploid
During which stage of mitosis do chromosomes become visible? a) Prophase b) Metaphase c) Anaphase d) Telophase
The metaphase plate is located at: a) The poles of the cell b) The nuclear envelope c) The equator of the cell d) The cytoplasm
Sister chromatids separate during: a) Prophase b) Metaphase c) Anaphase d) Telophase
The nuclear envelope re-forms during: a) Prophase b) Metaphase c) Anaphase d) Telophase
Cytokinesis refers to: a) Nuclear division b) Chromosome condensation c) Division of cytoplasm d) DNA replication
Meiosis reduces chromosome number by: a) One-fourth b) Half c) Three-fourths d) Double
Meiosis produces how many cells? a) Two b) Three c) Four d) Eight
The cells produced by meiosis are: a) Diploid b) Haploid c) Triploid d) Tetraploid
Homologous chromosomes are: a) Identical chromosomes b) Chromosomes with same genes from both parents c) Sister chromatids d) Unpaired chromosomes
Crossing over occurs during: a) Mitosis b) Prophase I of meiosis c) Metaphase II of meiosis d) Interphase
Crossing over results in: a) Cell death b) Genetic recombination c) DNA damage d) Chromosome loss
Which process is responsible for growth and repair? a) Meiosis b) Mitosis c) Crossing over d) Fertilization
Sexual reproduction involves: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither mitosis nor meiosis
Spindle fibers begin to form during: a) Interphase b) Prophase c) Metaphase d) Telophase
The process of chromosome condensation occurs in: a) G1 phase b) S phase c) G2 phase d) Prophase
How many divisions occur in mitosis? a) One b) Two c) Three d) Four
How many divisions occur in meiosis? a) One b) Two c) Three d) Four
Asexual reproduction involves: a) Mitosis b) Meiosis c) Fertilization d) Crossing over
The chromosome number remains the same in: a) Mitosis b) Meiosis c) Both d) Neither
Genetic variation is produced in: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither
The equatorial plate is formed during: a) Prophase b) Metaphase c) Anaphase d) Telophase
Sister chromatids are held together by: a) Spindle fibers b) Centromeres c) Nuclear envelope d) Cytoplasm
The longest phase of mitosis is: a) Prophase b) Metaphase c) Anaphase d) Telophase
DNA synthesis occurs during which phase? a) G1 b) S c) G2 d) M
The cell checkpoint that ensures DNA has been replicated occurs at: a) G1/S boundary b) S/G2 boundary c) G2/M boundary d) M/G1 boundary
Centrioles duplicate during: a) G1 phase b) S phase c) G2 phase d) M phase
The shortest phase of mitosis is: a) Prophase b) Metaphase c) Anaphase d) Telophase
Chromosomes are most condensed during: a) Prophase b) Metaphase c) Anaphase d) Telophase
The mitotic spindle is fully formed during: a) Prophase b) Metaphase c) Anaphase d) Telophase
Chromosome movement to poles occurs during: a) Prophase b) Metaphase c) Anaphase d) Telophase
Nuclear envelope breakdown occurs during: a) Prophase b) Metaphase c) Anaphase d) Telophase
The first phase of meiosis is: a) Prophase I b) Metaphase I c) Anaphase I d) Telophase I
Independent assortment occurs during: a) Prophase I b) Metaphase I c) Anaphase I d) Telophase I
Homologous chromosomes separate during: a) Anaphase I b) Anaphase II c) Metaphase I d) Metaphase II
Sister chromatids separate during meiosis in: a) Anaphase I b) Anaphase II c) Metaphase I d) Metaphase II
The reduction division in meiosis occurs during: a) Meiosis I b) Meiosis II c) Both divisions d) Neither division
Synapsis occurs during: a) Prophase I b) Metaphase I c) Prophase II d) Metaphase II
Bivalents are formed during: a) Mitosis b) Meiosis I c) Meiosis II d) Interphase
The number of chromatids in a bivalent is: a) Two b) Three c) Four d) Eight
Chiasmata are points where: a) Spindle fibers attach b) Crossing over occurs c) Chromosomes break d) Centromeres divide
Gametes are produced by: a) Mitosis b) Meiosis c) Binary fission d) Budding
The diploid number in humans is: a) 23 b) 46 c) 48 d) 44
The haploid number in humans is: a) 23 b) 46 c) 48 d) 44
Somatic cells undergo: a) Mitosis b) Meiosis c) Both d) Neither
Germ cells undergo: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither
The cell cycle checkpoint that prevents damaged DNA from being passed to daughter cells occurs at: a) G1/S b) Intra-S c) G2/M d) All of the above
Cyclin proteins regulate: a) DNA replication b) Cell cycle progression c) Chromosome condensation d) Spindle formation
The point of no return in the cell cycle is: a) Start point b) Restriction point c) G2/M checkpoint d) Spindle checkpoint
Apoptosis is: a) Cell division b) Cell growth c) Programmed cell death d) DNA repair
Cancer is characterized by: a) Controlled cell division b) Uncontrolled cell division c) No cell division d) Slow cell division
Tumor suppressor genes: a) Promote cell division b) Inhibit cell division c) Have no effect on cell division d) Only work in cancer cells
Oncogenes: a) Prevent cancer b) Promote cancer c) Have no relation to cancer d) Only exist in normal cells
The G0 phase is: a) Part of mitosis b) A resting phase c) DNA replication phase d) Cell division phase
Cells that never divide are in: a) G1 phase b) S phase c) G2 phase d) G0 phase
The spindle checkpoint ensures: a) DNA replication is complete b) All chromosomes are attached to spindle c) Cell size is adequate d) Nutrients are sufficient
Polyploidy results from errors in: a) DNA replication b) Chromosome separation c) Protein synthesis d) Cell metabolism
Nondisjunction can occur during: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither process
Down syndrome results from: a) Missing chromosome b) Extra chromosome 21 c) Broken chromosome d) Inverted chromosome
Klinefelter syndrome has the karyotype: a) 45,X b) 47,XXY c) 47,XYY d) 46,XX
Turner syndrome has the karyotype: a) 45,X b) 47,XXY c) 47,XYY d) 46,XY
Meiotic arrest occurs in: a) Male gametes only b) Female gametes only c) Both male and female gametes d) Neither male nor female gametes
Oogenesis involves: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither process
Spermatogenesis involves: a) Mitosis only b) Meiosis only c) Both mitosis and meiosis d) Neither process
The primary oocyte is arrested in: a) Prophase I b) Metaphase I c) Prophase II d) Metaphase II
The secondary oocyte is arrested in: a) Prophase I b) Metaphase I c) Prophase II d) Metaphase II
Fertilization triggers completion of: a) Meiosis I b) Meiosis II c) Mitosis d) DNA replication
The first polar body is produced after: a) Meiosis I b) Meiosis II c) Fertilization d) Mitosis
How many functional gametes are produced from one primary spermatocyte? a) One b) Two c) Three d) Four
How many functional gametes are produced from one primary oocyte? a) One b) Two c) Three d) Four
Polar bodies eventually: a) Become eggs b) Become sperm c) Degenerate d) Divide further
The acrosome reaction occurs in: a) Eggs b) Sperm c) Somatic cells d) Polar bodies
Capacitation occurs in: a) Eggs b) Sperm c) Somatic cells d) Polar bodies
The cortical reaction prevents: a) Fertilization b) Polyspermy c) Implantation d) Development
Parthenogenesis is: a) Sexual reproduction b) Asexual reproduction c) Fertilization d) Meiosis
Alternation of generations involves: a) Only diploid phases b) Only haploid phases c) Both diploid and haploid phases d) Neither phase
In plants, the sporophyte is: a) Haploid b) Diploid c) Triploid d) Polyploid
In plants, the gametophyte is: a) Haploid b) Diploid c) Triploid d) Polyploid
Spores are produced by: a) Mitosis b) Meiosis c) Fertilization d) Budding
Gametes are produced by: a) Mitosis b) Meiosis c) Both processes d) Neither process
Double fertilization occurs in: a) Animals b) Fungi c) Flowering plants d) Bacteria
The endosperm is: a) Diploid b) Triploid c) Haploid d) Tetraploid
Vegetative reproduction involves: a) Mitosis b) Meiosis c) Fertilization d) Spore formation
Binary fission occurs in: a) Animals b) Plants c) Bacteria d) Fungi
Budding is a form of: a) Sexual reproduction b) Asexual reproduction c) Meiosis d) Fertilization
Fragmentation and regeneration occur in: a) Simple organisms b) Complex organisms c) Only plants d) Only animals
Clone formation involves: a) Sexual reproduction b) Asexual reproduction c) Meiosis d) Fertilization
Identical twins result from: a) Two eggs fertilized separately b) One embryo splitting c) Nondisjunction d) Polyploidy
Fraternal twins result from: a) Two eggs fertilized separately b) One embryo splitting c) Nondisjunction d) Polyploidy
Stem cells are characterized by: a) Inability to divide b) Ability to differentiate c) Short lifespan d) Specific function
Totipotent cells can: a) Form any cell type b) Form limited cell types c) Not divide d) Only form gametes
Pluripotent cells can: a) Form any cell type including extraembryonic b) Form most cell types but not extraembryonic c) Form only one cell type d) Not differentiate
Cell differentiation involves: a) Changes in DNA sequence b) Changes in gene expression c) Loss of chromosomes d) Gain of chromosomes
Senescence refers to: a) Cell division b) Cell aging c) Cell death d) Cell growth
Answer in one word or one sentence.
Name the longest phase of the cell cycle.
What does S phase stand for?
During which phase does DNA replication occur?
Name the process of cytoplasm division.
How many daughter cells are produced by mitosis?
How many daughter cells are produced by meiosis?
What type of cells does mitosis produce - haploid or diploid?
What type of cells does meiosis produce - haploid or diploid?
In which phase do chromosomes become visible?
Where do chromosomes align during metaphase?
When do sister chromatids separate in mitosis?
When does the nuclear envelope reform?
What are homologous chromosomes?
Define crossing over.
In which phase of meiosis does crossing over occur?
What is the result of crossing over?
Name the process responsible for growth and repair.
Name the process involved in sexual reproduction.
How many divisions occur in mitosis?
How many divisions occur in meiosis?
What is cytokinesis?
What is a bivalent?
What are chiasmata?
What is synapsis?
Define gametes.
What is the diploid chromosome number in humans?
What is the haploid chromosome number in humans?
What type of division do somatic cells undergo?
What type of division do germ cells undergo?
What is apoptosis?
What is the G0 phase?
What are cyclins?
What is nondisjunction?
What causes Down syndrome?
What is the karyotype for Turner syndrome?
What is the karyotype for Klinefelter syndrome?
What is oogenesis?
What is spermatogenesis?
Where is the primary oocyte arrested?
Where is the secondary oocyte arrested?
What triggers completion of meiosis II in the egg?
How many functional sperm are produced from one primary spermatocyte?
How many functional eggs are produced from one primary oocyte?
What happens to polar bodies?
What is parthenogenesis?
What is alternation of generations?
What is the ploidy of sporophyte in plants?
What is the ploidy of gametophyte in plants?
How are spores produced?
What is double fertilization?
What is the ploidy of endosperm?
What type of reproduction is budding?
What is binary fission?
What are clones?
How do identical twins form?
How do fraternal twins form?
What are stem cells?
What are totipotent cells?
What are pluripotent cells?
What is cell differentiation?
What is senescence?
What is the metaphase plate?
What holds sister chromatids together?
What is the spindle checkpoint?
What are oncogenes?
What are tumor suppressor genes?
What is cancer?
What is polyploidy?
What is the restriction point?
What is the acrosome reaction?
What is capacitation?
What is the cortical reaction?
What prevents polyspermy?
What is vegetative reproduction?
What is fragmentation?
What is regeneration?
What is clone formation?
What is meiotic arrest?
What are centrioles?
When do centrioles duplicate?
What is the equatorial plate?
What is independent assortment?
What is reduction division?
What is the first polar body?
What is the second polar body?
What is fertilization?
What is implantation?
What is development?
What is growth?
What is repair?
What is replacement?
What is reproduction?
What is inheritance?
What is variation?
What is recombination?
What is segregation?
What is assortment?
What is linkage?
What is mutation?
What is evolution?
Answer in 2-3 sentences or provide brief explanations.
Explain the significance of interphase in the cell cycle.
Describe what happens during G1 phase.
Explain the importance of S phase.
Describe the events of G2 phase.
Compare the duration of interphase with mitotic phase.
Explain why interphase is crucial for successful cell division.
Describe the events of prophase in mitosis.
Explain what happens during metaphase.
Describe the process of anaphase.
Explain the events of telophase.
Compare prophase and telophase.
Explain the relationship between mitosis and cytokinesis.
Describe the significance of mitosis in growth.
Explain how mitosis contributes to repair.
Describe the role of mitosis in asexual reproduction.
Compare mitosis in plant and animal cells.
Explain the formation of the mitotic spindle.
Describe the role of centromeres in mitosis.
Explain chromosome condensation during mitosis.
Describe the importance of chromosome alignment.
Explain the difference between meiosis I and meiosis II.
Describe the significance of homologous chromosomes.
Explain the process of synapsis.
Describe crossing over and its importance.
Explain independent assortment.
Describe the formation of bivalents.
Explain the significance of chiasmata.
Describe reduction division.
Explain genetic recombination in meiosis.
Compare sister chromatids and homologous chromosomes.
Describe the differences between diploid and haploid cells.
Explain the role of meiosis in sexual reproduction.
Compare the outcomes of mitosis and meiosis.
Describe the cellular differences after mitosis and meiosis.
Explain the importance of chromosome number reduction.
Describe how meiosis contributes to genetic variation.
Explain the concept of genetic diversity.
Describe the role of crossing over in evolution.
Explain the significance of independent assortment in inheritance.
Compare the genetic content of parent and daughter cells in both processes.
Describe the cell cycle checkpoints.
Explain the G1/S checkpoint.
Describe the spindle checkpoint.
Explain the role of cyclins in cell cycle control.
Describe what happens when checkpoints fail.
Explain the relationship between cell cycle and cancer.
Describe apoptosis and its importance.
Explain the difference between apoptosis and necrosis.
Describe the G0 phase and its significance.
Explain why some cells never divide.
Describe nondisjunction and its consequences.
Explain how chromosomal disorders arise.
Describe Down syndrome and its cause.
Explain Turner syndrome.
Describe Klinefelter syndrome.
Explain the effects of aneuploidy.
Describe polyploidy and its occurrence.
Explain the difference between monosomy and trisomy.
Describe how nondisjunction can occur in meiosis.
Explain the consequences of nondisjunction in mitosis.
Describe gametogenesis in males.
Explain oogenesis in females.
Compare spermatogenesis and oogenesis.
Describe the formation of polar bodies.
Explain meiotic arrest in female gametes.
Describe the timing of meiosis in male and female gametes.
Explain the difference in gamete production between males and females.
Describe the role of hormones in gametogenesis.
Explain the significance of unequal division in oogenesis.
Describe the fate of polar bodies.
Explain fertilization as a cellular process.
Describe the restoration of diploid number after fertilization.
Explain the role of meiosis in life cycles.
Describe alternation of generations.
Explain the diploid and haploid phases in plant life cycles.
Describe sporogenesis in plants.
Explain the formation of male and female gametes in plants.
Describe double fertilization in flowering plants.
Explain the significance of endosperm formation.
Compare sexual and asexual reproduction at the cellular level.
Describe vegetative reproduction.
Explain binary fission in prokaryotes.
Describe budding as a form of reproduction.
Explain fragmentation and regeneration.
Describe the advantages and disadvantages of asexual reproduction.
Explain the advantages and disadvantages of sexual reproduction.
Describe the formation of identical twins.
Explain the formation of fraternal twins.
Describe stem cells and their properties.
Explain the difference between totipotent and pluripotent cells.
Describe cell differentiation.
Explain the role of gene expression in cell differentiation.
Describe cellular senescence.
Explain the relationship between aging and cell division.
Describe the Hayflick limit.
Explain telomeres and their role in aging.
Describe cancer as a disease of cell division.
Explain oncogenes and tumor suppressor genes.
Describe metastasis at the cellular level.
Explain the importance of understanding cell division for medicine.
Provide detailed explanations with examples where appropriate.
Describe the complete cell cycle with its phases and explain the importance of each phase in preparing the cell for division.
Explain the detailed process of mitosis, describing each stage and its significance in maintaining chromosome number.
Compare and contrast mitosis and meiosis, highlighting their differences in terms of purpose, process, and outcomes.
Describe the process of meiosis in detail, explaining how it leads to genetic variation and the formation of gametes.
Explain the significance of crossing over in meiosis and how it contributes to genetic diversity and evolution.
Describe the cell cycle checkpoints and explain how they prevent errors in cell division and their role in preventing cancer.
Explain the process of gametogenesis in both males and females, highlighting the differences and similarities.
Describe chromosomal disorders that result from errors in meiosis, explaining their causes and consequences with examples.
Explain the concept of alternation of generations in plants and describe how it relates to cell division processes.
Describe the role of cell division in growth, repair, and reproduction, providing specific examples for each.
Explain how cancer develops as a result of uncontrolled cell division and describe the molecular basis of cancer.
Describe the importance of cell cycle regulation and explain what happens when this regulation breaks down.
Explain the process of fertilization and describe how it restores the diploid chromosome number and initiates development.
Describe stem cells, their types, and their role in development and medical applications.
Explain the relationship between cell division and aging, describing the mechanisms that limit cell division.
Describe the differences between sexual and asexual reproduction at the cellular level and explain their evolutionary significance.
Explain the molecular mechanisms that control cell division, including the role of cyclins and checkpoints.
Describe how environmental factors can affect cell division and lead to mutations or cancer.
Explain the importance of DNA repair mechanisms and how they relate to cell division and cancer prevention.
Describe the process of apoptosis and explain its importance in development and disease prevention.
Explain how chromosomes are organized and behave during cell division, including the role of the spindle apparatus.
Describe the differences in cell division between prokaryotes and eukaryotes.
Explain the concept of ploidy and describe how changes in chromosome number affect organisms.
Describe the role of cell division in immune system function and explain how immune cells reproduce.
Explain how plant cell division differs from animal cell division and describe the unique features of plant cell division.
Describe the relationship between cell size and cell division, explaining the factors that trigger cell division.
Explain the process of regeneration in organisms and describe the role of cell division in this process.
Describe how hormones regulate cell division and provide examples from both plants and animals.
Explain the concept of cell senescence and describe its role in aging and cancer prevention.
Describe the evolutionary significance of sexual reproduction and explain how meiosis contributes to evolutionary success.
Explain how errors in cell division can lead to genetic disorders and describe methods to detect these disorders.
Describe the role of cell division in wound healing and tissue repair, explaining the different phases involved.
Explain the concept of totipotency and pluripotency, describing their importance in development and regenerative medicine.
Describe how cell division is regulated during development and explain the concept of developmental checkpoints.
Explain the relationship between nutrition and cell division, describing how nutrient availability affects cell cycle progression.
Describe the role of oxygen in cell division and explain how hypoxia affects cell cycle progression.
Explain how radiation and chemicals can affect cell division and describe the mechanisms of mutagenesis.
Describe the process of tissue formation through cell division and differentiation during embryonic development.
Explain the concept of contact inhibition and describe its role in controlling cell division in tissues.
Describe how viruses can affect cell division and explain the relationship between viral infections and cancer.
Explain the role of telomeres in cell division and describe how telomerase activity affects cellular lifespan.
Describe the process of meiotic drive and explain how it can affect inheritance patterns.
Explain the concept of hybrid vigor and describe how it relates to genetic variation produced by sexual reproduction.
Describe the role of cell division in plant growth and development, including the function of meristematic tissues.
Explain how cell division contributes to homeostasis in multicellular organisms.
Describe the differences between normal cell division and cancer cell division, explaining the loss of growth control.
Explain the role of cell division in the life cycles of different organisms, providing examples from various kingdoms.
Describe how cell division patterns contribute to the formation of different tissue types and organ systems.
Explain the relationship between cell division and metabolism, describing how energy requirements change during the cell cycle.
Describe the future prospects of cell division research and its potential applications in medicine and biotechnology.
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