Class 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 2 (60 MCQs)

Quiz Instructions

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1. Normal cell division is regulated by .....
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.
3. The reason of Genetic variation is .....
4. How many meoitic divisions are required to produce 100 seeds during angiospermic life cycle?
5. Human sperm cells have ..... chromosomes.
6. What would be the DNA content in the cell at G1, G2, anaphase stage, when the content after mitotic phase is 40 Pg?
7. True or False:Crossing-over also happens in Meiosis II.
8. What happens in synthesis phase? (S phase)
9. Chromosomes condense, nuclear envelope breaks down, centrioles move to opposite sides, spindle fibers form
10. In the structure of DNA, which nucleotide always pairs with adenine?
11. During mitosis, DNA is found in the condensed form called a
12. The phase of mitosis in which the sister chromatids separate from each other
13. At the end of Mitosis, how many cells are there?
14. What is the significance of the cell cycle?
15. Name the scientist who first studied Chromosomes in animals?
16. What happens during metaphase?
17. Cell splits into two.
18. Compare the genetic variation in daughter cells produced by mitosis and meiosis.
19. During anaphasic movements of chromosomes, ..... of each chromosome is/are towards the pole and ..... of the chromosome trail(s) behind.
20. Chromosomes are copied during which phase of the cell cycle?
21. During the G2 phase
22. During which phase of mitosis do the chromosomes line up in the middle of the cell?
23. During which phase of the cell cycle does the cytoplasm divide and two new cells are formed?
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?
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?
26. Which phase is known as the rest phase, when cells are not growing or preparing to divide?
27. During checkpoints, ..... send the cell into the next stage of the cell cycle.
28. What is the LAST phase in the cell cycle? (After Mitosis and before the cycle begins again)
29. During what phase does the mitotic spindle appear and the nuclear membrane disappear?
30. Which of the following statements is correct regarding G$_{0}$ phase?
31. V-shape Chromosome appears in ..... of mitosis-
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
33. During interphase, the DNA is in the form of
34. Chromosomes line up in a single file at the middle of the cell.
35. The significance of mitosis is to:
36. What happens to the sister chromatids during mitosis?
37. Which of these organisms relies on mitosis for reproduction?
38. How many mitotic divisions are required to produce 128 cells from 1 cell?
39. The cell cycle is important for growth and ..... in multicellular organisms.
40. G1, G2, S occur during .....
41. He distribution of mitochondria and plastid between the daughter cells during cytokinesis
42. Chromosome structure can be observed best during .....
43. When does meiosis occur?
44. In mitosis the two resulting cells are
45. Which of the following does not take place during the interphase?
46. Where is meristematic tissue mainly found in plants?
47. What is the correct order of the stages of mitosis?
48. What is the role of the spindle during mitosis?
49. Mitosis is the process by which
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.
51. Mitosis (division or the nucleus and chromosomes ONLY) and cytokines (division of the cytoplasm)
52. A bivalent of meiosis I consists of
53. What is the main purpose of mitosis?
54. What kind of cells are made in MEIOSIS?
55. This area is where the chromatids are attached at the "center" of the chromosomes
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.
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?
58. Cytokinesis begins during this stage of mitosis.
59. During a biology class, Aiden, Anika, and Emma are learning about Metaphase. Where do the chromosomes line up during this phase?
60. Which of the following best describes meiosis?