1. The period between two successive divisions is called......
Correct : B. Cellcycle
2. The chromosomes are distributed in two cells in half thir number is called.
Correct : C. Heterotypic division
3. What is the average cell cycle span of a human cell ?
Correct : C. 24 Hrs.
4. During cell cycle DNA replication takes place in.......
Correct : B. S - phase
5. During which of the following phase of mitosis asters appear round the centrioles ?
Correct : A. Prophase
6. At Which sub stage of meiosis crossing over takes place ?
Correct : C. Pachytene
7. During which of the following stage of division nuclear membrane and nucleolus reappear ?
Correct : D. Telophase
8. What is average cell cycle span of a Yeast cell ?
Correct : C. 90 min.
9. Interphase can be divided into how many sub phases ?
Correct : B. 3
10. In how many phase the mitosis can be divided ?
Correct : A. 4
11. The result of meiosis is the formation of.......
Correct : C. 8 cells
12. The locations at which crossing over occurs are known as......
Correct : C. Chiasmata
13. Complete disintegration of nuclear membrane and nucleolus take place during which stage of mitosis ?
Correct : A. Prophase
14. Which of the following structure will not be common to mitotic cell of a higher plant ?
Correct : C. Centriole
15. How many mitotic division are needed for a single cell to make 128 cells ?
Correct : D. 7
16. Series of cell division is :
Correct : A. prophase, metaphase, anaphase, telophase
17. Meiosis involves :
Correct : A. two nuclear division and one chromosome division
18. Which of the correct order of phases in prophsae I ?
Correct : B. Leptotene, zygotene, pachytene, diplotene, diakinesis
19. In how many cells the meiotic division has taken place, if the total number of gametes produced are 32 ?
Correct : C. 8
20. Prophase is characterized by :
Correct : B. thread like appearance of chromosomes
21. Given :
(1)Chromatid (2) Monad
(3)Dyad (4) Daughter Chromosomes
Correct : B. 2, 3, 1, 4
22. Pairing of homologous chromosomes during zygotene is termed :
Correct : C. synapsis
23. At which stage of mitosis chromatids separate and passes to different poles :
Correct : C. Anaphase
24. G2 phase is between :
Correct : B. end of S phase and start of mitosis
25. Post mitotic gap phase and synthesis phase of cell cycle are also respectively referred to as :
Correct : B. G1 and S
26. If you are provided with root-tips of onion in your class and are asked to count the chromosome, which of the following stage can you most conviently look into
Correct : D. Metaphase
27. What is correct ?
Correct : D. DNA – replication occurs in S – phase.
28. A cell divides every one minute. At this rate of division it can fill a 100 ml of beaker in one hour. How much time does it take to fill a 50 ml beaker ?
Correct : C. 59 minute
29. At which phase of meiosis, the 2 cell, each with separated sister chromatids move towards opposite poles :
Correct : B. anaphase-II
30. During meiosis crossing over occurs between which part of homologous chromosome ?
Correct : B. nonsister chromatids
31. During mitotic metaphase :
Correct : D. chromosomes are located at equator.
32. In meiosis the daughter cells are not similar to that of parent because of :
Correct : A. crossing over
33. Pick out the correct statements :
Correct : D. Nucleoli reappear at telophase I of meiosis
34. Assertion (A) : Phase of cell division is also known as dividing phase. Reason (R) : In mitotic phase new cells are produced from pre-existing cells through meiosis division.
Correct : C. A is true statement but R is false.
35. Synapsis occurs between :
Correct : C. two homologous chromosomes
36. During mitosis nuclear membrane and nucleolus begin to disappear at :
Correct : D. Late prophase
37. Cell cycle is divided in stages as given below Which is the correct pair ?
Correct : B. D – synthesis phase
38. IN which stage of mitosis division segregation of chromatids occur and they migrate at different polar ends.
Correct : C. Anaphas
39. Number of chromosomes are maintained from generation to generation by :
Correct : B. Meiosis division
40. How many meiotic stage are essential for producing 28 cells from one cell ?
Correct : A. 7
41. In diploid living organisms crossing over is responsible for ?
Correct : A. Recombination of linked gene
42. What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells ?
Correct : D. 63
43. Select the correct option with respect to mitosis.
Correct : B. Chromosomes move to the spindle equator and get aligned along equatorial plate inmetaphase.
44. During gamete formation, the enzyme recombinase participate during :
Correct : B. Prophase-I
45. Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage ?
Correct : D. Prophase-I during meiosis
46. It is responsible for begininig of the life of organisms.
Correct : B. Zygote
47. Who proposed the cell theory.
Correct : B. Schwann and schleiden
48. Who proposed that new cells arise through cell division of pre-existing cells.
Correct : B. Rudolf Virchow
49. It is the Smallest Cell.
Correct : B. Mycoplasm
50. Prokaryotic cells have which architectural regions?
Correct : B. Appendages
51. The association of more than one ribosome with a single molecule of m-RNA complex is called as...
Correct : B. Polysome
52. Which structure possess flagellin protein?
Correct : B. Flagellum
53. The cell wall of algae is made up of which substance?
Correct : B. Mannans
54. The cells involved in large amount of lipid synthesis,do not possess this orgenelle on Endoplasmicreticulum.
Correct : B. Ribosomes
55. In mitochodria, it contains F-particles.
Correct : B. Cristae
56. The materials essential for dark reaction are located in
Correct : B. Thylakoids
57. Microfilaments are made up of
Correct : B. Protein
58. It possess Flagella.
Correct : B. Euglena
59. It directs formation of the bipolar spindle during cell division.
Correct : B. Centriole
60. In human which cell lacks nucleus.
Correct : B. RBC
61. The unit of phloem in which nucleus is absent.
Correct : B. Sieve tube
62. No membrane surrouds in this organelle.
Correct : B. Nucleolus
63. It actively synthesized r-RNA.
Correct : B. Nucleolus
64. In each chromosome centromere possessing disc shaped structure is
Correct : B. Kinetochore
65. Bacteria possess small DNA other than circular DNA which is called as...
Correct : B. Plasmid
66. It shows presence of Nucleoid.
Correct : B. Bacteria
67. The cell wall of fungi is made up of which substance?
Correct : B. Chitin
68. Which organelle is not considered as a part of Endomembrane system?
Correct : B. Chloroplast
69. Chromosome in which centromere is located at the end is....
Correct : B. Telo centric
70. Select unicellular organism which possess cillia.
Correct : B. Paramoecium
71. Which is the example of unicellular organism?
Correct : A. Chlamydomona
72. Who mentioned that cells had a thin layer around them?
Correct : A. Schwann
73. Who mention that the presence of a cell wall is an unique character of the plant cell?
Correct : A. Schwann
74. Which organelles are found only in animal cell?
Correct : A. Centriole
75. Which is biggest animal cell?
Correct : A. Ostrich’s egg
76. In some of Bacteria the outer-most layer is a loose sheath layer called as....
Correct : A. Slime layer
77. What is the function of SER?
Correct : A. Synthesis of Steroid hormone
78. How many unit occur in each stackpile of golgi apparatus?
Correct : A. 4 to 8
79. What is produce when vesicle are separated from golgi body?
Correct : A. Lysosome
80. The area the cytoplasn without any cytoplasm are called as...
Correct : A. Vacuole
81. Which organelle is responsible for degradation of worn out cells?
Correct : A. Lysosome
82. which plastid is not included as a chromoplast?
Correct : A. Chloroplast
83. Which plastids possess chlorophyll pigments?
Correct : A. Chloroplast
84. How many grana present in one chloroplast?
Correct : A. 40-60
85. Each granum possesses how many thylakoids?
Correct : A. 02-100
86. In peripheral region of centriole nine triplets are arranged at which angles?
Correct : A. 40o
87. This organelle possesses 9+0 structure.
Correct : A. Centriole
88. Various colours in flower fruit and seeds are due to presence of which pigment?
Correct : A. Anthocyanin
89. What is the diameter of cisternae in golgi apparatus?
Correct : A. 0.5m-1m
90. Which organelle possess hydrolase enzyme?
Correct : A. Lysosome
91. The leucoplast which stores protein is known as...
Correct : A. Aleuroplast
92. The protoplast surrounding the centriole is called as...
Correct : A. Centrosphere
93. Like zygote any cell of the body is capable of producing a new individual is known as...
Correct : A. Totipotency
94. Which organelle is associated in the formation of basal granules, cillia and flagella?
Correct : A. Centrosome
95. The number of mitochondria per cell depends upon the...
Correct : A. Physiological activity of the cell
96. How many basic shapes of Bacteria are there ?
Correct : A. 4
97. Which structure serves as a protective layer agaimst attack by phagocytes and by viruses?
Correct : A. Capsule
98. How much diameter of ribosome in prokaryotic cell?
Correct : A. 20 nm
99. Which organelle possesses circular DNA?
Correct : A. Chloroplast
100. Select the Correct option from Cloumn-I and Column-II
Cloumn-I Column-II
P Micro filaments i Glycocalyx
Q Micro tubules ii Actin
R Flagella iii Tubulin
S Outer most layer of bacteria iv Flagellin