1. Cytology
    2. 1. Tools used in Cytology
    2. Cell Biology
    3. Cell cycle
    4. Biomolecules
  2. Genetics
    3. 5. Introduction
    6. Inheritance
    7. Mutation and Polypoidy
  3. Plant Anatomy
    4. 8. Plant Anatomy
    9.
  4. Plant Physiology
    5. 10. Respiration
    11. Photosynthesis
    12. Growth and Growth hormone
    13. Mode of nutrition and Habitat in Plants
  5. Classification and Biodiversity
    6. 14. Classification
    15. Virus
    16. Bacteria
    17. Thallophyta
    18. Bryophyta
    19. Pteridophyta
    20. Gymnosperm
    21. Reproduction
    22. Morphology of Angiosperm
  6. Taxonomy, Ecology and Application of biology
    7. 23. Taxonomy
    24. Ecology
    25. Application of Biology
Cytology
3. Cell cycle
1. Chiasmata formation takes place in [MOE 2058]

[MOE 2058]

  • Leptotene
  • Zygotene
  • Diplotene
  • Diakinesis
2. Meiosis occurs in [MOE 2055]

[MOE 2055]

  • Leaf tips
  • Shoot tips
  • Root tips
  • Pollen mother cells
3. Chromosomes are seen distinctly during [BPKIHS 1997]

[BPKIHS 1997]

  • Anaphase
  • Telophase
  • Metaphase
  • Interphase
4. Mitosis can be clearly observed from: [BPKIHS 1997]

[BPKIHS 1997]

  • Root apex and shoot apex
  • Cells of bud
  • Cambium region
  • Flower part
5. The smallest unit of crossing over is [BPKIHS 1998]

[BPKIHS 1998]

  • Muton
  • Recon
  • Cistron
  • Gene
6. When only G, phase is operating and others are no operating the phase is [BPKIHS 1998]

[BPKIHS 1998]

  • G1 phase
  • Go phase
  • M phase
  • S phase
7. Synapsin occurs in which stage: [MOE - 2008]

[MOE - 2008]

  • Pachytene
  • Zygotene
  • Diplotene
  • Diakinesis
8. The no. of chromatids in a chromosomes at metaphase is: [MOE-2002]

[MOE-2002]

  • 2 in mitosis and 1 in meiosis
  • 2 in mitosis and 2 in meiosis
  • 1 in mitosis and 2 in meiosis
  • 2 in mitosis and 4 in meiosis
9. In meiosis cell division, nuclear membrane disappear and chromosomes are separated during: [MOE-2053)

[MOE-2053)]

  • Prophase
  • Anaphase
  • Interphase
  • Metaphase
10. The two daughter cells produced at the end of meiosis when compared to the parent diploid cells will have: [IOM-2004)

[IOM-2004)]

  • Same amount of DNA and same number of chromosome
  • Same amount of DNA and half number of chromosome
  • Half amount of DNA and same number of Chromosome
  • Same amount of DNA and same number of chromosome
11. Nucleus has maximum size during: [IOM- 20]

[IOM- 20%]

  • Prophase
  • Metaphase
  • Interphase
  • Telophase
12. Which of the following is associated with division? [IOM-200]

[IOM-200]

  • Centriole
  • Mitochondria
  • Ribosome
  • Chloroplast
13. How many times does a simple cell divide mitotical to form 32 cells? [IOM-20]

[IOM-20]

  • 5
  • 6
  • 1
  • 8
14. In which stage does centromere divide? [IOM- 20]

[IOM- 20 ]

  • Metaphase I
  • Anaphase I
  • Metaphase II
  • Anaphase II
15. The inherent capacity of a cell to regenerate a total plant is called. [IOM- 195

[IOM- 195]

  • Cell fractionation
  • Cellular totipotency
  • Cell maturation
  • Cell migration
16. Interphase, chromatin under electron microscope refers to: [BPKIHS 200]

[BPKIHS 200]

  • Thin thread
  • Colloidal masses
  • Dark staining regions
  • All
17. The mitosis can be readily observed in: [BPKIHS 200)

[BPKIHS 200)]

  • Root apex
  • Testes of grasshopper
  • Ovary of rabbit
  • Nerve cells
18. During meiosis, which is correct? [BPKIHS 2001

[BPKIHS 2001]

  • 4 diploid nuclei are formed
  • Homologous chromosomes separate out
  • It helps in division of somatic cells
  • It helps in regeneration of body parts
19. During which phase chromatids are clearly seen: [BPKIHS 200]

[BPKIHS 200%]

  • Anaphase II
  • Prophase I
  • Metaphase I
  • Metaphase II
20. Homologous chromosome separate during: [BPKIHS 2002

[BPKIHS 2002]

  • Anaphase I
  • Anaphase II
  • Prophase II
  • Telophase II
21. During meiosis gametes produced are: [BPKIHS 2002)

[BPKIHS 2002)]

  • Haploid
  • Diploid
  • Triploid
  • Polyploid
22. No. of chromosomes in sister cells immediately after mitotic metaphase are: [BPKIHS 2003)

[BPKIHS 2003)]

  • 46
  • 44
  • 23
  • 22
23. Karyokinesis is the division of:

[BPKIHS 2005]

  • Nucleolus
  • Nucleus
  • Cytoplasm
  • Ooplasm
24. Terminalisation takes place during:

[BPKIHS 2005]

  • Pachytene
  • Diplotene
  • Zygotene
  • Diakinesis
25. The site where meiosis occur in a plant is:

[BPKIHS 2006]

  • Root tip
  • Pollen grain
  • Stem tip
  • Anther
26. A cell stops growing due to storage of nutrients, this would happen in:

[BPKIHS 2007]

  • G1 phase
  • S phase
  • G2 phase
  • M phase
27. In cell division replication of DNA occurs in

[IE - 2002]

  • Prophase
  • Interphase
  • Metaphase
  • Anaphase
28. During the start of mitosis the condensed chromosome contains 2

[IE - 2002]

  • Certriole
  • Kinetochore
  • Centromere
  • Chromatids
29. Which of the following is the part of mitosis in seed plants?

[IE - 2002]

  • Asters
  • Spindles
  • Centrioles
  • Cell furrow or cleavage
30. During cell cycle, two molecules of DNA are present in chromosome during

[IE -2003]

  • G1 Phase
  • Beginning of S-phase
  • G2 phase
  • End of M-phase
31. The transfer of genes from one chromosome to another during synapsis, is termed as:

[IE - 2004]

  • Linkage
  • Crossing over
  • Dominance
  • Independent assortment
32. Crossing over occurs during

[IE - 2005]

  • Fertilization
  • Mitosis
  • Meiosis
  • Amitosis
33. Replication of DNA occurs during

[IE - 2005]

  • G1 phase
  • S phase
  • G2 phase
  • M phase
34. The region of attachment of chromosome to spindle fibre is called

[IE - 2005]

  • Kinetochore
  • Centriole
  • Secondary constriction
  • Satellite chromosome
35. Segregation of dominant and recessive genes occur during:

[IE - 2008]

  • Anaphase |
  • Anaphase II
  • Metaphase
  • Diakinisis
36. The point at which crossing over takes place is [BPKIHS - 2016, 2012]

[BPKIHS - 2016, 2012]

  • Chromatic
  • Kinetophore
  • Chiasmata
  • Gene loci
37. The phase of cell cycle in which nucleolus and nuclear membrane disappear is [BPKIHS - 2016)

[BPKIHS - 2016)]

  • Prophase
  • Metaphase
  • Anaphase
  • Telophase
38. What is the correct order of prophase I of meiosis I? [BPKIHS - 2013]

[BPKIHS - 2013]

  • Leptotene, zygotene, pachytene, diplotene, diakinesis
  • Leptotene, pachytene, zygotene, diplotene, diakinesis
  • Leptotene, zygotene, diakinesis, pachytene, diakinesis
  • Leptotene, pachytene, diplotene, zygotene, diakinesis
39. Chromosomes becomes distinct and nucleolus as well as nuclear membrane disappears is [BPKIHS - 2012]

[BPKIHS - 2012]

  • Prophase
  • Anaphase
  • Metaphase
  • Telophase
40. Centrosome helps in [BPKIHS - 2011]

[BPKIHS - 2011]

  • Formation of spindle fibres
  • Duplication of DNA
  • Length wise splitting of chromosome
  • Duplication of centriole
41. Shortest phase of cell cycle is: [BPKIHS - 2010]

[BPKIHS - 2010]

  • M
  • G1
  • G1
  • G2
42. Correct sequence of cell cycle is

[IOM-2014]

  • S, G1 G2, M
  • G1, S, G2, M
  • M1, G2, G1, S
  • G1, S, M, G2
43. The main significance of M-phase of the cell cycle is

[IOM-2013]

  • fusion of DNA
  • physical separation of replicated DNA molecules
  • reduction in chromosome number
  • replication of cell organelles
44. Terminalization occurs in

[IOM-2016]

  • Diakinesis
  • Cytokinesis
  • Leptotene
  • Pachytene
45. The mitotic poison is

[IOM-2012]

  • Auxin
  • Colchicine
  • Gibberellin
  • High temperature
46. In which stage chromosome are arranged in equator?

[IOM-2012]

  • Prophase
  • Anaphase
  • Metaphase
  • Telophase
47. In meiosis, bivalent is attached to spindle fiber at

[IOM-2012]

  • Chromomere
  • Centromere
  • Chromosome
  • Chromatid
48. The amount of DNA doubles in which mitotic phase

[MOE 2014]

  • G1 phase
  • S phase
  • G2 phase
  • Metaphase
49. At what stage of mitotic division, formation daughter nuclei takes place?[MOE 2016

[MOE 2016]

  • Prophase
  • Metaphase
  • Anaphase
  • Telophase
50. The pairing (synapsid) of chromosome occurs in the following stage of meiosis-I [MOE 2068)

[MOE 2068)]

  • Leptotene
  • Zygotene
  • Pachytene
  • Diplotene
51. In which stage of the meiotic cell division crossing over occurs? [MOE 2010)

[MOE 2010)]

  • Diplotene
  • Pachytene
  • Leptotene
  • Anaphase
52. Centromere completely divides into two separate chromatids at [MOE 2010)

[MOE 2010)]

  • Metaphase
  • Anaphase
  • Prophase
  • Telophase