This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 10 Cell Cycle And Cell Division – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Normal cell division is regulated by ..... A) Proto-oncogenes. B) Oncogenes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Proto-oncogenes. 2. Statement 1-Since cell growth is a continuous process, DNA synthesis can occur in any stage in the cell cycle.Statement 2-The replicated chromosomes (DNA) are distributed to daughter nuclei by a complex series of events during cell division. These events are themselves under genetic control. A) Both statements are incorrect. B) Both are correct. C) Only statement 1 is correct. D) Only statement 1 is incorrect. Show Answer Correct Answer: D) Only statement 1 is incorrect. 3. The reason of Genetic variation is ..... A) Chiasmata. B) Mitotic division. C) Crossing over. D) Satellite DNA. Show Answer Correct Answer: C) Crossing over. 4. How many meoitic divisions are required to produce 100 seeds during angiospermic life cycle? A) 125. B) 400. C) 200. D) 100. Show Answer Correct Answer: A) 125. 5. Human sperm cells have ..... chromosomes. A) 23. B) 28. C) 26. D) 24. Show Answer Correct Answer: A) 23. 6. What would be the DNA content in the cell at G1, G2, anaphase stage, when the content after mitotic phase is 40 Pg? A) G$_{1}$ = 80 Pg, G$_{2 }$= 40 Pg, Anaphase = 40 Pg. B) G$_{1}$ = 80 Pg, G$_{2}$ = 40 Pg, Anaphase = 80 Pg. C) G$_{1 }$= 40 Pg, G$_{2}$ = 80 Pg, Anaphase = 80 Pg. D) G$_{1 }$= 40 Pg, G$_{2}$ = 80 Pg, Anaphase = 40 Pg. Show Answer Correct Answer: C) G$_{1 }$= 40 Pg, G$_{2}$ = 80 Pg, Anaphase = 80 Pg. 7. True or False:Crossing-over also happens in Meiosis II. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. What happens in synthesis phase? (S phase) A) Making membrane. B) Making organelles. C) Making proteins. D) DNA replication. Show Answer Correct Answer: D) DNA replication. 9. Chromosomes condense, nuclear envelope breaks down, centrioles move to opposite sides, spindle fibers form A) Metaphase. B) Genes. C) Anaphase. D) Prophase. Show Answer Correct Answer: D) Prophase. 10. In the structure of DNA, which nucleotide always pairs with adenine? A) Thymine. B) Guanine. C) Cytosine. D) Uracil. Show Answer Correct Answer: A) Thymine. 11. During mitosis, DNA is found in the condensed form called a A) Chromosome. B) Centromere. C) Centriole. D) Chromatin. Show Answer Correct Answer: A) Chromosome. 12. The phase of mitosis in which the sister chromatids separate from each other A) Prophase. B) Metaphase. C) Anaphase. D) Telophase. Show Answer Correct Answer: C) Anaphase. 13. At the end of Mitosis, how many cells are there? A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: B) 2. 14. What is the significance of the cell cycle? A) It ensures proper cell division and the maintenance of genetic stability. B) It allows for the synthesis of proteins only during the S phase. C) It is responsible for the production of energy in the form of ATP. D) It regulates the temperature of the cell environment. Show Answer Correct Answer: A) It ensures proper cell division and the maintenance of genetic stability. 15. Name the scientist who first studied Chromosomes in animals? A) Alexander Fleming. B) John Ambrose Fleming. C) Edward Jenner. D) Walther Flemming. Show Answer Correct Answer: D) Walther Flemming. 16. What happens during metaphase? A) Chromosomes move apart. B) Two nuclear membranes are formed. C) DNA is copied. D) Chromosomes meet in the MIDDLE. Show Answer Correct Answer: D) Chromosomes meet in the MIDDLE. 17. Cell splits into two. A) Cytokinesis. B) Metaphase. C) Interphase. D) Prophase. Show Answer Correct Answer: A) Cytokinesis. 18. Compare the genetic variation in daughter cells produced by mitosis and meiosis. A) Both have high genetic variation. B) Mitosis has high variation, meiosis has low. C) Mitosis has low variation, meiosis has high. D) Both have low genetic variation. Show Answer Correct Answer: C) Mitosis has low variation, meiosis has high. 19. During anaphasic movements of chromosomes, ..... of each chromosome is/are towards the pole and ..... of the chromosome trail(s) behind. A) Centromere, arms. B) Arms, centromere. C) Chromatids, centromere. D) None of these. Show Answer Correct Answer: A) Centromere, arms. 20. Chromosomes are copied during which phase of the cell cycle? A) G1 phase. B) G2 phase. C) M phase. D) S phase. Show Answer Correct Answer: D) S phase. 21. During the G2 phase A) The daughter cell doubles in size and recovers from mitosis. B) The DNA is copied in preparation for mitosis. C) The cell prepares for cell division right before mitosis. D) None of the above. Show Answer Correct Answer: C) The cell prepares for cell division right before mitosis. 22. During which phase of mitosis do the chromosomes line up in the middle of the cell? A) Metaphase. B) Prophase. C) Telophase. D) Anaphase. Show Answer Correct Answer: A) Metaphase. 23. During which phase of the cell cycle does the cytoplasm divide and two new cells are formed? A) Metaphase. B) Anaphase. C) Cytokinesis. D) Interphase. Show Answer Correct Answer: C) Cytokinesis. 24. A sea otter has 38 chromosomes in their body (somatic) cells. When one somatic cell undergoes mitosis, how many chromosomes will a daughter cell have? A) 27. B) 38. C) 76. D) 19. Show Answer Correct Answer: B) 38. 25. A botanist examined a mesophyll cell of a dicot plant and counted 100 chromosome each consisting of two chromatids at prophase of mitosis. What would he/she expect to see in a microspore of this plant? A) 100 chromosome each consisting of 2 chromatid. B) 50 chromosome each consisting of 2 chromatid. C) 50 chromosome each consisting of 1 chromatid. D) 200 chromosome each consisting of 1 chromatid. Show Answer Correct Answer: C) 50 chromosome each consisting of 1 chromatid. 26. Which phase is known as the rest phase, when cells are not growing or preparing to divide? A) G2. B) S. C) G0. D) G1. Show Answer Correct Answer: C) G0. 27. During checkpoints, ..... send the cell into the next stage of the cell cycle. A) Tumor suppressor genes. B) Proto-oncogenes. C) Differentiation genes. D) Go genes. Show Answer Correct Answer: B) Proto-oncogenes. 28. What is the LAST phase in the cell cycle? (After Mitosis and before the cycle begins again) A) G1. B) G2. C) Cytokinesis. D) Prophase. Show Answer Correct Answer: C) Cytokinesis. 29. During what phase does the mitotic spindle appear and the nuclear membrane disappear? A) Interphase. B) Mitosis. C) Metaphase. D) Prophase. Show Answer Correct Answer: D) Prophase. 30. Which of the following statements is correct regarding G$_{0}$ phase? A) Mitogens are present in G$_{0}$ phase. B) Mitogens are present but energy rich compounds are absent. C) Both mitogens and energy rich compounds are present. D) Neither mitogens nor energy rich compounds are present. Show Answer Correct Answer: D) Neither mitogens nor energy rich compounds are present. 31. V-shape Chromosome appears in ..... of mitosis- A) Metaphase. B) Anaphase. C) Telophase. D) Prophase. Show Answer Correct Answer: B) Anaphase. 32. After fertilization, each specialized cell undergoes mitosis and has a specific design and shape that allows it to perform its function at the highest level possible. This process is known as A) Crossing-over. B) Nondisjunction. C) Cell specialization. D) Apoptosis. Show Answer Correct Answer: C) Cell specialization. 33. During interphase, the DNA is in the form of A) Chromatin. B) Chromatids. C) Chromosomes. D) Centromeres. Show Answer Correct Answer: A) Chromatin. 34. Chromosomes line up in a single file at the middle of the cell. A) Prophase. B) Telophase. C) Metaphase. D) Anaphase. Show Answer Correct Answer: C) Metaphase. 35. The significance of mitosis is to: A) Increase genetic variation. B) Reduce chromosome number by half. C) Maintain genetic stability. D) Produce gametes. Show Answer Correct Answer: C) Maintain genetic stability. 36. What happens to the sister chromatids during mitosis? A) They connect giving each daughter the same genetic information. B) They separate giving each daughter different genetic information. C) They separate giving each daughter the same genetic information. D) None of the above. Show Answer Correct Answer: C) They separate giving each daughter the same genetic information. 37. Which of these organisms relies on mitosis for reproduction? A) Angry bird. B) Grumpy cat. C) Squishy jellyfish. D) Unicellular paramecium. Show Answer Correct Answer: D) Unicellular paramecium. 38. How many mitotic divisions are required to produce 128 cells from 1 cell? A) 6. B) 8. C) 7. D) 9. Show Answer Correct Answer: C) 7. 39. The cell cycle is important for growth and ..... in multicellular organisms. A) Repair. B) Reproduction. C) Unification. D) None of the above. Show Answer Correct Answer: A) Repair. 40. G1, G2, S occur during ..... A) Metaphase. B) Mitosis. C) Interphase. D) Anaphase. E) Prophase. Show Answer Correct Answer: C) Interphase. 41. He distribution of mitochondria and plastid between the daughter cells during cytokinesis A) Is random. B) Is directed by centrioles. C) Is directed by mitotic spindle. D) Is directed by nuclear membrane. Show Answer Correct Answer: A) Is random. 42. Chromosome structure can be observed best during ..... A) Interphase. B) Prophase. C) Anaphase. D) Metaphase. Show Answer Correct Answer: D) Metaphase. 43. When does meiosis occur? A) In somatic cells. B) During growth and repair. C) In sex cells. D) During mitosis. Show Answer Correct Answer: C) In sex cells. 44. In mitosis the two resulting cells are A) Different from the starting cell and identical to each other. B) Identical to the starting cell and different from each other. C) Different from the starting cell and different from each other. D) Identical to the starting cell and identical to each other. Show Answer Correct Answer: D) Identical to the starting cell and identical to each other. 45. Which of the following does not take place during the interphase? A) Absorption of nutrients. B) DNA replication. C) Production of spindle fibers. D) Cell division. Show Answer Correct Answer: D) Cell division. 46. Where is meristematic tissue mainly found in plants? A) At the center of the stem. B) At the root and shoot tips. C) In the vascular bundles. D) On the surface of leaves. Show Answer Correct Answer: B) At the root and shoot tips. 47. What is the correct order of the stages of mitosis? A) Prophase, metaphase, anaphase, telophase. B) Telophase, prophase, anaphase metaphase,. C) Metaphase, prophase, telophase, anaphase. D) Anaphase, telophase, metaphase, prophase. Show Answer Correct Answer: A) Prophase, metaphase, anaphase, telophase. 48. What is the role of the spindle during mitosis? A) Duplicate the DNA. B) Separates the chromatids. C) It changes the chromatin to chromosome. D) Breaks down the membrane. Show Answer Correct Answer: B) Separates the chromatids. 49. Mitosis is the process by which A) The nucleus is divided into two nuclei. B) The cell rests. C) Microtubules are assembled. D) Cytoplasm is divided. Show Answer Correct Answer: A) The nucleus is divided into two nuclei. 50. ..... is characterised by all chromosomes coming to lie at the equator, with one chromatid connected by its kinetochore to spindle fibres from one pole and its sister chromatid connected by its kinetochore to spindle fibres from the opposite pole. A) Anaphase. B) Prophase. C) Metaphase. D) Telophase. Show Answer Correct Answer: C) Metaphase. 51. Mitosis (division or the nucleus and chromosomes ONLY) and cytokines (division of the cytoplasm) A) G0. B) G1. C) S. D) M. E) G. Show Answer Correct Answer: D) M. 52. A bivalent of meiosis I consists of A) Two chromatids and one centromere. B) Two chromatids and two centromeres. C) Four chromatids and two centromeres. D) Four chromatids and four centromeres. Show Answer Correct Answer: C) Four chromatids and two centromeres. 53. What is the main purpose of mitosis? A) Growth and repair. B) Producing sex cells. C) Reducing chromosome number. D) Disappearing nucleolus. Show Answer Correct Answer: A) Growth and repair. 54. What kind of cells are made in MEIOSIS? A) Diploid Somatic Cells. B) Skin Cells. C) Liver Cells. D) Haploid Gametes. Show Answer Correct Answer: D) Haploid Gametes. 55. This area is where the chromatids are attached at the "center" of the chromosomes A) Centromere. B) Chromatids. C) Chromosomes. D) None of the above. Show Answer Correct Answer: A) Centromere. 56. The cell cycle is important for growth in multicellular organisms, reproduction in some organisms, replacement of worn-out cells, and repair of damaged cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. Benjamin and Ethan are studying cell division in their biology class. They learn about mitosis and its end result. What is the end result of mitosis? A) 2 zygotes. B) 2 different body cells. C) 2 identical body cells. D) 2 gametes. Show Answer Correct Answer: C) 2 identical body cells. 58. Cytokinesis begins during this stage of mitosis. A) Anaphase. B) Prophase. C) Telophase. D) Interphase. Show Answer Correct Answer: C) Telophase. 59. During a biology class, Aiden, Anika, and Emma are learning about Metaphase. Where do the chromosomes line up during this phase? A) Outside the cell. B) Middle of the cell. C) Around the Cell. D) Edges of the Cell. Show Answer Correct Answer: B) Middle of the cell. 60. Which of the following best describes meiosis? A) It is carried out in all tissues that require cell replacement. B) It occurs only in cells in the reproductive structures of organisms. C) It happens in all tissues except the brain and spinal cord. D) It is the first stage of mitosis. Show Answer Correct Answer: B) It occurs only in cells in the reproductive structures of organisms. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 1Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 3Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 4Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 5Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 6Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 7Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 8Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books