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Botany Practice MCQs

1 of 50

Q.1 Golgi complex and endoplasmic reticulum cannot be seen during

  • late telophase
  • late prophase
  • early anaphase
  • late metaphase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

2 of 50

Q.2 Cell plate grows from

  • walls to the centre
  • centre to the walls
  • in patches
  • simultaneously


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

3 of 50

Q.3 Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles

  • C, A, B, D
  • C, B, A, D
  • C, D, B, A
  • A, C, D, B


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

4 of 50

Q.4 If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into

  • Prophase
  • Anaphase
  • Telophase
  • Metaphase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

5 of 50

Q.5 Karyokinesis is the term used for

  • division of cytoplasm
  • division of nucleoplasm
  • division of nucleus
  • separation of daughter chromosomes


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

6 of 50

Q.6 During which stage the chromosomes first become visible

  • Anaphase
  • Metaphase
  • Prophase
  • Telophase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

7 of 50

Q.7 In mitosis, nuclear envelope and nucleolus disappear during

  • Metaphase
  • Interphase
  • Prophase
  • Telophase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

8 of 50

Q.8 Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences

  • II, I, IV, III
  • III, II, I, IV
  • IV, III, II, I
  • I, IV, III, II


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

9 of 50

Q.9 The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is

  • splitting of the centromeres
  • splitting of the chromatids
  • replication of the genetic material
  • condensation of the chromatin


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

10 of 50

Q.10 what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?

  • Autotetraploid
  • Haploid
  • Triploid
  • Allotetraploid


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

11 of 50

Q.11 Meiosis occurs for the human female in ______.

  • Pancreas
  • Liver
  • Ovary
  • Kidney


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

12 of 50

Q.12 Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene

  • C, B, A, D, E
  • C, A, B, E, D
  • C, B, A, E, D
  • D, B, C, E, A


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

13 of 50

Q.13 How many chromosomes are there in onion root tip cell?

  • 6
  • 16
  • 26
  • 36


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

14 of 50

Q.14 Lampbrush chromosomes are observed in

  • Mitotic prophase
  • Mitotic metaphase
  • Meiotic metaphase
  • Meiotic prophase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

15 of 50

Q.15 Which of the following cellular structures always disappears during mitosis and meiosis?

  • Plasma membrane
  • Nucleolus and nuclear envelope
  • Plastids
  • none of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

16 of 50

Q.16 Centromere is a constituent of

  • Ribosome
  • ER
  • Chromosome
  • Mitochondrion


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

17 of 50

Q.17 In which phase of cell cycle, proteins are synthesised?

  • G0
  • G1
  • G2
  • S


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

18 of 50

Q.18

  • Early prophase
  • Early metaphase
  • Early telophase
  • Early anaphase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

19 of 50

Q.19 The stage in which daughter chromosomes move toward the poles of the spindle is

  • Anaphase
  • Metaphase
  • Prophase
  • Telophase


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

20 of 50

Q.20 Synaptonemal complex dissolves in _____ stage.

  • Zygotene
  • Pachytene
  • Diakinesis
  • Diplotene


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

21 of 50

Q.21 Synapsis occurs between

  • A male and female gametes
  • Ribosome and m-RNA
  • Spindle fibres and centromeres
  • Two homologous chromosomes


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

22 of 50

Q.22 Division of nucleus without being followed by cytokinesis results into

  • Phargmoplast
  • Polyploidy
  • Uninucleate condition
  • Multinucleate condition


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

23 of 50

Q.23 A cell plate is laid down during

  • Cytokinesis
  • Interphase
  • Karyokinesis
  • None of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

24 of 50

Q.24 Crossing over results the exchange of genetic material, which occurs between

  • Non-sister chromosomes
  • Sister chromatids
  • Non-homologous chromosome
  • Homologous chromosomes


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

25 of 50

Q.25 The number of chromosome and the amount of DNA are changed in

  • Metaphase and M phase
  • Anaphase and S phase
  • Interphase and S phase
  • None of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

26 of 50

Q.1 Mechanism of development was explained by

  • Hans Dietrisch
  • Spemann
  • Both a and b
  • Haemmerling


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

27 of 50

Q.2 Intercalary meristems are of

  • Permanent nature
  • Temporary nature
  • Some are permanent some temporary
  • None of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

28 of 50

Q.3 Cells of fibers and tracheids elongate during

  • Phase of cell division
  • Phase of cell elongation
  • Phase of cell maturation
  • Phase of cell differentiation


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

29 of 50

Q.4 Typical plant growth shows _________ curve.

  • J-shaped
  • S-shaped
  • I-shaped
  • Parabolic


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

30 of 50

Q.5 Exponential growth of the plants is express as W1 = W0 ert r represents

  • ability of the plant to produce new cells
  • efficiency index
  • relative growth rate
  • all of the above


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

31 of 50

Q.6 Opening of floral buds into flowers, is a type of:

  • Autonomic movement of variation
  • Autonomic movement of locomotion
  • Autonomic movement of growth
  • Paratonic movement of growth


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

32 of 50

Q.7 Which one is incorrect?

  • Epiblast is presumptive ectoderm and mesoderm
  • Hypoblast is presumptive endoderm
  • Hypoblast is presumptive mesoderm
  • Upper layer of cells in blastoderm is epiblast


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

33 of 50

Q.8 The stage of rapid cell division just after fertilization is

  • Organogenesis
  • Cleavage
  • Gastrulation
  • Growth


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

34 of 50

Q.9 Which one of the followings is a gaseous plant hormone?

  • Ethylene
  • Gibberellin
  • IAA
  • Abscisic acid


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

35 of 50

Q.10 To prevent over – ripening, bananas should be

  • given a dip in ascorbic acid
  • maintained at room temperature
  • refrigerated
  • stored at the top of refrigerator


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

36 of 50

Q.11 Growth in dorsiventral leaf is measured in terms of

  • length of leaf
  • increase in cell number
  • surface area increase
  • none of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

37 of 50

Q.12 Plants grow throughout their life due to

  • presence of meristems
  • presence of vascular cambium
  • presence of xylem and phloem
  • presence of tracheids


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

38 of 50

Q.14 The ability to regain or recover the lost or injured part of body is

  • Aging
  • Regeneration
  • Abnormal development
  • Primary inductio


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

39 of 50

Q.15 Which growth hormone accerlates the malting process in brewing industry?

  • Auxins
  • Gibberellins
  • Ethylene
  • Cytokinins


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

40 of 50

Q.16 Which plant growth regulator is the derivative of carotenoids?

  • Auxin
  • Gibberelic acid
  • Cytokinin
  • Abscisic acid


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

41 of 50

Q.18 Mobilisation of stored food in germinating seeds is triggered by

  • auxins
  • cytokinins
  • gibberellins
  • ethylene


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

42 of 50

Q.19 Cavity formed between somatic and splanchnic mesoderm is called

  • Gastrocoele
  • Blastocoele
  • Coelom
  • Neurocoele


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

43 of 50

Q.20 IAA is naturally occurring plant hormone called

  • Gibberlin
  • Auxin
  • Cytokinin
  • Absicic acid


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

44 of 50

Q.21 Auxin is synthesised from in apical meristem from amino acid

  • Isoleucine
  • Methionine
  • Niacin
  • Tryptophan


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

45 of 50

Q.22 Growth regulator which induces parthenocarpy

  • IAA
  • ABA
  • Cytokinin
  • Ethylene


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

46 of 50

Q.23 Formation of seedless fruit without act of fertilisation

  • Parthenocarpy
  • pseudocarpy
  • Apomixis
  • Parthenogenesis


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

47 of 50

Q.24 The major site for production of gibberellin is

  • Embryos
  • Roots
  • Young leaves
  • All of these


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

48 of 50

Q.25 Gibberellin is isolated from

  • Brian et al
  • Went
  • Yabuta
  • Kurosawa


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

49 of 50

Q.1 R.Q is ratio of

  • CO2 produced to substarate consumed
  • CO2 produced to O2 consumed
  • oxygen consumed to CO2 produced
  • oxygen consumed to water produced


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

50 of 50

Q.2 Angiosperm pollen is generally released at the

  • 1 – celled stage
  • 2 – celled stage
  • 3 – celled stage
  • male gamete formation stage


Class 11thBotanyGeneral ScienceNEET UG PreparationBiologyNEET UG

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