1. During inspiration (J.I.PME.R.2004,Orissa 2005,R.PMT.2005)
Correct : C. Diaphragm and external intercostal muscles contract
2. Mountain sickness at high altitude is due to (C.P.M.T.2005)
Correct : C. Decreased partial pressure of oxygen
3. Capacity of human lungs for air in a healthy person is (Orissa 2005)
Correct : A. 3000 ml
4. Rate of breathing is controlled by
Correct : B. Carbon dioxide in blood
5. During strenous exercise,glucose is converted into (B.H.U.2005)
Correct : D. Lactic acid
6. How much pulmonary air is expired normally (Har.P.M.T.2005)
Correct : D. 32%
7. Which is incorrect ? (C.B.S.E.2006)
Correct : B. In insects,circulation body fluids serve to distribute oxygen to tissues
8. Percenatage of oxygen being carried by blood plasma is (Orissa 2006)
Correct : C. 2-3%
9. Column I represents diseases and column II represents their symptoms. Which of the following pairs are correct match for them (Guj.CE.T.2006) ColumnI ColumnII
(P) Asthma (i) Recurring of bronchitis
(Q) Emphysema (ii) Accumulation of W.B.CS in alveolus
(R) Pneumonia (iii) Allergy
(a) P = iii, Q = ii, R = i (b) P = iii, Q = i, R = ii
(c) P = ii, Q = iii, R = i (d) P = ii, Q = i, R = iii
Correct : B. P - ii , Q - i , R - iii , S - iv
10. :- Make the correct pairs.
Correct : D. Asbetosis
11. :- What is indicated by A and B respectivity in the figure?
Correct : B. Larynx and Pharynx
12. :- Where the A and B parys, Labeled in given figure are ended?
Correct : C. Trachea and Bronchioles
13. :- What is indicated by “A” in figure ?
Correct : C. Heart
14. :- Make the correct pairs.
Columan-I Column-II
(a) Bronchus i. Give passage to air toward alveoli
(b) Alveoli ii. Give passage to air toward lung
(c) Bronchioles iii. Give passage to air toward bronchus
(d) Trachea iv. Perform exchange of air
Correct : C. P - ii , Q - iv , R - i , S - iii
15. Approximately how many cells are present in the body of an adult person ?
Correct : A. 1014
16. The period between two successive cell divisions in called........
Correct : C. Cell cycl
17. Which is fundamental property of all living organisms ?
Correct : C. Growth
18. The two chromatids of a metaphase chromosome represents :
Correct : B. replicated chromosomes to be separated at anaphase
19. With how many cell reproduction starts ?
Correct : B. Single cel
20. Which of the following is present in maximum number in an adult person ?
Correct : A. Somatic cell
21. What is synthesized during G2
– phase ?
Correct : D. (a) and (b)
22. Synthesis of RNA and protein takes place in which phase of the cell cycle ?
Correct : C. G1-phase
23. During which phase can nucleolus be observed clearly ?
Correct : B. Early Prophase
24. Which structure can be observed at the surface of centromere during metaphase ?
Correct : A. Kinetochore
25. Mitosis actually means……
Correct : D. Both nuclear (Karyokinesis) and cytoplasmic divisions.
26. The role of mitosis is not merely to divide a cell into two daugher cells but to ensure genetic continuity from one cell generation. The mechanism ensuring genetic continutity is;
Correct : A. Formation of two cells with identical DNA
27. Substances that interface with microtubule function interfare with cell division because....
Correct : B. Microtubules are involved in precise separate set of chromosomes get into each daughter cells.
28. The stage of mitosis during which the nucleolus disintegrates and chromosomes appear is known as
Correct : C. Prophase
29. Chromosomes can be counted during :
Correct : B. Metaphase
30. The nuclear membrane disintegrates and spindle appears at :
Correct : D. Late prophase
31. The separation of two chomatids of each chromosome during early anaphase is initiated by :
Correct : C. Attachment of spindle fibres with Kinetochore
32. The telophase stage of mitosis is…….
Correct : D. All of the above
33. The term ‘karyokinesis’ is used for….
Correct : D. Over all changes occurring in nucleus during the cell division.
34. How many mitotic divisions must occur in a cell to form 1024 cells ?
Correct : B. 10
35. The difference in the division of a plant cell and animal cell is in.....
Correct : A. Cell membrane formation
36. During which phase of prophase-I of meiosis does the process of synapsis occur ?
Correct : B. Zygotene
37. In mitosis the daughter cells resemble to their parent cell. But in meiosis they differ not only from parent cell in having half the number of chromosomes, but also differ among themselves qualitatively in genetic constitution due to.....
Correct : C. Crossing over, independent assortment and segregation
38. Which is the longest phase of meitoic division ?
Correct : A. Prophase-I
39. At which stage, the homologous chromosomes separate due to repulsion, but are yet held by chiasmata :
Correct : C. Diplotene
40. If there are four chromosomes present during prophase – I, how many chromosome are there in each cell at the end of anaphase - II
Correct : C. 2
41. Meiosis – II is :
Correct : B. Mitotic division
42. Significance of meiosis is associated with :
Correct : C. Sexual reproduction
43. The minimum number of meiotic divisions required to obtain 100 pollen grain of wheat is.....
Correct : B. 25
44. The number of meiotic divisions required to produce 400 seeds in a pea plant is.....
Correct : D. 400
45. Significance of meiosis.........
Correct : B. It is important process for evolution
46. In which of the following matters mitosis and meiosis are similar ?
Correct : B. Both have pairing of homologous chromosomes
47. During which of the following phases of mitosis asters appear around the centroles ?
Correct : A. Prophase
48. During which stage of meiosis crossing over takes place ?
Correct : C. Dikinesis
49. At which of the following stage4s of cell cycle proteins and microtubules, required for mitosis, are synthesized ?
Correct : A. G2 phase
50. If the initial amout of DNA is denoted as 2C then it increases into :
Correct : B. 4C
51. A. During interphase, chromosomes are recognized as chromatin network. R. Chromosomes are highly dispersed during this phase.
Correct : A. Both A and R are true and R is correct explanation of A.
52. A. G1 phase is also called growth phase. R. There is a lot of biosynthetic activity during
Correct : A. Both A and R are true and R is correct explanation of A.
53. A. The meiotic division-I is also called reduction division.
R. During this the chromosomes are distributed in two cells in half their number.
Correct : A. Both A and R are true and R is correct explanation of A.
54. A. During meiosis, the genetic material is replicated twice whereas the cell divides one. R. Meiosis takes place in plants and animals during the formation of reproductive cells.
Correct : D. A is wrong and R is true
55. A. Number of chiasmata is more in longer chromosomes.
R. The number of chiasmata depends on the length of chromosomes.
Correct : A. Both A and R are true and R is correct explanation of A.
56. Statement – P : G1 stage is the last stage or interphase. Statement – Q : Systhesis of DNA takes place in G2 stage.
Correct : D. Statement P and Q both are wrong
57. Statement – P : Interphase is divided in three sub phases. Statement – Q : G1 phase is the initial phase of interphase.
Correct : A. Statement P and Q both are correct
58. Statement – P : In ‘S’ stage centrosome is duplicated Statement – Q : In the prophase centrioles separate from each other and move towards the opposite poles.
Correct : C. Statement P is wrong and statement Q is correct
59. For the statement ‘X’ and statement ‘Y’ which of the following option is correct ? Statement – ‘X’ :During meiosis the genetic material is replicated once. Statement – ‘Y’ : Genetic material is not replicated during interkinesis.
Correct : A. Both statements ‘X’ and ‘Y’ are correct
60. Match the following :
Coulmn-I Coulmn-II
(A) Prophase (i) Nuclear membrane and other orgenelles reorganise
(B) Metaphase (ii) Arrangement of chromatids on the poles
(C) Anaphase (iii) Formation of cytoplasmic fibres of proteins
(D) Telophase (iv) Arranged on equatorial plane
(E) Cytokinesis (v) The formation of syncytium
Correct : B. (A - iii) (B - iv) (C - ii) (D - i) (E - v)
61. Match the following :
Coulmn-I Coulmn-II
(A) Laptotene (i) Nucleolus disappears
(B) Zygotence (ii) Appearance of recombination nodules
(C) Pachytene (iii) Develoment of Synapsis
(D) Diplotene (iv) Chromosome appears filamentous
(E) Daikinesis (v) Genes exchange at chaismata
Correct : A. (A - iv) (B - iii) (C - ii) (D - v) (E - i)
62. Match the following :
Coulmn-I Coulmn-II
(A) Prophase-I (i) Chromosomes move toward one plane along with centromere.
(B) Metaphase-II (ii) Half the number of chromosomes in seen
(C) Anaphase-I (iii) Longest phase of meiosis-I
(D) Telophase-I (iv) Two nuclei are seen
Correct : A. (A - iii) (B - i) (C - ii) (D - iv)
63. Match the following :
Coulmn-I Coulmn-II
(A) Cytokinesis (i) Reformation of nuclear Membrane and golgi body
(B) Metaphase (ii) Synthesis of RNA and protein
(C) Telophase (iii) Centromers of chmosomes are arranged on equatorial plate.
(D) Interphase (iv) Contraction of chomosomes starts (v) The formation of synctium
Correct : C. (A - iv) (B - ii) (C - i) (D - iv)
64. Select correct statement’s for cell cycle.
(i) Yeast cell can complete on cell cycle in every 90 minutes
(ii) A period between creation of a cell and division of that cell.
(iii) Cell cycle is mainly divided into interphase and differentiation like two phases.
Correct : A. (i) and (ii) only
65. Which of the following statement is/are correct for prophase of mitosis ?
(i) At the end of this phase nuclear membrane and nucleolus disintegrate.
(ii) At the end of this phase two chromosome and a centromere holding them together.
(iii) This phase begins with the condensation of chromatids along their lengths.
Correct : A. (i) only
66. Which of the following statement is/are correct for Prophase-I ?
(i) During diplotene, the members of each pair of homologous chromosomes start moving away from one another.
(ii) In zygotene, bivalent chromosomes appear tetravalent.
(iii) In diakinesis, chromatids become separated even at the site of chiasmata.
Correct : C. only (i) and (iii)
67. Which of the following statement is/are correct for Meiosis-II ?
(i) Chromosomes are arranged on equatorial plate in prophase-II
(ii) Nucleolus disappear during telophase-II
(iii) In anaphase-II, the chromatids with their independent centromeres are called chromosomes.
(iv) In metaphase-II, centromere of each chromosome becomes attached to filament of bipolar spindle.
Correct : B. only (iii) and (iv)
68. Find out the incorrect pair.
Correct : B. G1 phase – New DNA is synthesized
69. Find the incorrect pair.
Correct : C. Anaphase – Equatorial plate
70. From the following which pair does not match ?
Correct : B. Meiosis – One parental cell produces two daughter cells
71. “The number of chiasmata depends on chromosomes” – What is the mistake in the given statement ?
Correct : D. Length of chromosome – Word is not mentioned
72. Which is the true statement for mitosis ?
Correct : C. Two cells are formed as a result of this division are identical in all aspects.
73. Which of the following statement is true for mitosis ?
Correct : D. Karyokinesis preceedes cytokinesis
74. Indentify the correct sequence of karyokinesis stages :
Correct : B. Prophase, Metaphase, Anaphase, Telophase
75. When synapsis is completed all along the chromosome, the cell is said to have entered a stage called :
Correct : B. pachytene
76. Which process is indicated by given diagram ?
Correct : A. Cell division during formation of reproductive cells.
77. Which of the following cell can complete one cell cycle in 90 minutes ?
Correct : D. Yeast Cell
78. Which plant material is best suited for studying mitosis in class room ?
Correct : A. Root tip
79. Mitosis can occur in
Correct : A. Haploid and diploid cells both
80. Genetic homogeneity and exact similarity between chromosomes of various cell within the same
type of issue of plant is due to :
Correct : C. Mitosis
81. Spindle fibres are composed of :
Correct : C. Proteins
82. In the plant cell, cytokinesis occurs by
Correct : C. Separation of the cytoplasm from cell centre to its periphery
83. Cytokinesis is generally, but not always, seen in mitosis. If cells undergo mitosis and do not follow
cytokinesis then it would result in :
Correct : D. A cell with two or more nuclei
84. How many time is the genetic material replicated during meiosis ?
Correct : B. Once
85. How does the pairs of homologous chromosomes appear during zygotene phase ?
Correct : D. Bivalent
86. In which of the following stages chromosomes are not seen clearly ?
Correct : B. Prophase-II
87. Crossing over involves.......
Correct : C. Exchange of genetic matetial
88. Crossing over occurs between.......
Correct : B. Non – sister chromatids of homologous chromosomes
89. During meiosis centromere divides :
Correct : A. Only one at anaphase - II
90. Which of the following occurs only during meiosis ?
Correct : A. Pairing of homologous chromosome
91. Select the correct option from Column-I and Column-II.
Column-I Column-II
(A) Leptotene (p) Synapsis
(B) Zygotene (q) Formation of bipolar spindle
(C) Pachytene (r) Condensation of chromosomes
(D) Diakinesis (s) Crossing over
Correct : C. (A - r) (B - r) (C - s) (D - q)
92. Select the correct option from Column-I and Column-II.
Column-I Column-II
(A) G1 phase (p) Synthesis of new DNA
(B) G2 phase (q) Synthesis of DNA does not occur
(C) S phase (r) DNA synthesis stops
Correct : D. (A - q) (B - r) (C - p)
93. Due to crossing over, an opportunity for the exchange of genes becomes possible.
Correct : C. Significance of meiosis
94. Which of the following statement is true for prophase ?
Correct : B. In this phase condensation of chromosome takes place along their lengths.
95. Syncytium means........
Correct : B. a condition arises when karyokinesis is not followed by cytokinesis.
96. In animal cell........
Correct : C. constriction of cytoplasm begins from the centre of the cell.
97. Given below is a schematic break-up of the phases/stage of cell cycle :
Correct : B. D Synthetic phase
98. Spindle fibre shorten.
Correct : D. Anaphase
99. Nucleus is reformed
Correct : A. Telophase-I
100. Pair of homologous chromosomes become arranged at the equatorial plane of the cell.