NEET Biology Plant Growth and Development / पौधे की वृद्धि और विकास Question Bank

done Cytokinin Total Questions - 31

• question_answer1)
  Cytokinin is a hormone whose main function is [DPMT 1983; MP PMT 1980]
  A)
  Induction of cell division and delay in senescence done clear
  B)
  To take part in cell division done clear
  C)
  Refers to cell movements done clear
  D)
  To cause dormancy done clear
  View Solution play_arrow

• question_answer2)
  Which hormone is concerned chiefly with cell division in plants [BHU 1984; DPMT 1985; MP PMT 1989; CBSE PMT 1988; AFMC 2000]
  A)
  IAA done clear
  B)
  Kinin done clear
  C)
  \[G{{A}_{2}}\] done clear
  D)
  2, 4-D done clear
  View Solution play_arrow

• question_answer3)
  Which of the following causes delaying of senescence [CPMT 2000; AIIMS 2001; BHU 2004]
  A)
  Cytokinins done clear
  B)
  Auxins done clear
  C)
  Gibberellins done clear
  D)
  Ascorbic acid done clear
  View Solution play_arrow

• question_answer4)
  The word ?cytokinin? which induces cell division was given by [JIPMER 1985]
  A)
  Yabuta done clear
  B)
  Brown done clear
  C)
  Letham done clear
  D)
  Fitting done clear
  View Solution play_arrow

• question_answer5)
  Leaf fall can be prevented by [CBSE PMT 1989]
  A)
  Florigen done clear
  B)
  Auxin done clear
  C)
  Cytokinins done clear
  D)
  Abscisic acid done clear
  View Solution play_arrow

• question_answer6)
  For plant tissue culture, among the following which one is required [BHU 1983]
  A)
  Trypsin done clear
  B)
  Kinetin done clear
  C)
  Caffeine done clear
  D)
  Coumarine done clear
  View Solution play_arrow

• question_answer7)
  Which of the following is capable of delaying yellowing of leaves [DPMT 1980]
  A)
  Gibberellins done clear
  B)
  Cytokinins done clear
  C)
  ABA done clear
  D)
  Auxins done clear
  View Solution play_arrow

• question_answer8)
  Zeatin has been obtained from
  A)
  Wheat done clear
  B)
  Rice done clear
  C)
  Maize done clear
  D)
  Oat done clear
  View Solution play_arrow

• question_answer9)
  Which of the following is a coconut milk factor [CBSE PMT 2000, 03; Manipal 2005]
  A)
  Auxin done clear
  B)
  Cytokinin done clear
  C)
  Morphactin done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer10)
  Zeatin is a
  A)
  Vitamin done clear
  B)
  Growth inhibitor done clear
  C)
  Growth promotor done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer11)
  Which of the following is a kinetin derivative
  A)
  Adenine done clear
  B)
  Thymine done clear
  C)
  Uracil done clear
  D)
  Cytocyne done clear
  View Solution play_arrow

• question_answer12)
  Discovery of which one of following is connected with the use of an old sample of DNA in a culture medium
  A)
  Cytokinins done clear
  B)
  ABA done clear
  C)
  Vitamin K done clear
  D)
  Pantothanic acid done clear
  View Solution play_arrow

• question_answer13)
  An excised leaf does not turn yellow if it is induced to root. This is attributed to synthesis in root of or Leaf aging is retarded by [DPMT 1984; CPMT 1985; CBSE PMT 1988]
  A)
  Ethylene done clear
  B)
  Cytokinins done clear
  C)
  Gibberellins done clear
  D)
  Auxins done clear
  View Solution play_arrow

• question_answer14)
  Which of the following is indispensable in all culture [DPMT 1985]
  A)
  Gibberellin done clear
  B)
  Kinetin done clear
  C)
  Ethylene done clear
  D)
  Auxin done clear
  View Solution play_arrow

• question_answer15)
  Cambial tissue of Pinus radiata contains
  A)
  Auxins done clear
  B)
  Gibberellins done clear
  C)
  Cytokinin done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer16)
  Guttman (1957) found a quick increase in the amount of RNA in the nuclei on onion root after
  A)
  Auxin treatment done clear
  B)
   Kinetin treatment done clear
  C)
  Gibberellin treatment done clear
  D)
   All the above done clear
  View Solution play_arrow

• question_answer17)
  RNA formation is induced by
  A)
  Phyllocalins done clear
  B)
  All calins done clear
  C)
  Kinetins done clear
  D)
  Florigens done clear
  View Solution play_arrow

• question_answer18)
  Cytokinin firstly synthesized by [RPMT 1995; BVP 2003]
  A)
  Skoog and Miller done clear
  B)
  Letham done clear
  C)
  Bensan and Calvin done clear
  D)
  Thimman and Went done clear
  View Solution play_arrow

• question_answer19)
  Name ?zeatin? was given by [RPMT 1995; J &K CET 2002; BVP 2003]
  A)
  Skoog done clear
  B)
  Miller done clear
  C)
  Letham done clear
  D)
  Melver done clear
  View Solution play_arrow

• question_answer20)
  All the cytokinins are [MP PMT 1996]
  A)
  Acidic done clear
  B)
  Aminopurines done clear
  C)
  Phenol done clear
  D)
  Glucosides done clear
  View Solution play_arrow

• question_answer21)
  6-furfuryl adenine is
  A)
  An auxin done clear
  B)
  A gibberellin done clear
  C)
  A cytokinin done clear
  D)
  A vitamin done clear
  View Solution play_arrow

• question_answer22)
  Which of the following exerts Richmond-Lang effect i.e. prevents loss of chlorophyll
  A)
  Kinetin/BA done clear
  B)
  Auxin/AA done clear
  C)
  Light done clear
  D)
  Gibberellin/Prophyrin done clear
  View Solution play_arrow

• question_answer23)
  The chief role of cytokinin is
  A)
  To check senescence done clear
  B)
  To check evaporation done clear
  C)
  To check abscission done clear
  D)
  To mobilise solutes to different parts of plant and check senescence done clear
  View Solution play_arrow

• question_answer24)
  Cytokinesis refers to [KCET 1994]
  A)
  Division of chromosomes done clear
  B)
  Division of cytoplasm done clear
  C)
  Division of nucleus done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer25)
  Which of the following induces cell division in a cell [AFMC 1997]
  A)
  Cytokinin done clear
  B)
  Gibberellins done clear
  C)
  Auxins done clear
  D)
  ABA done clear
  View Solution play_arrow

• question_answer26)
  A plant hormone used for inducing morphogenesis in plant tissue culture is [CBSE PMT 1998]
  A)
  Abscisic acid done clear
  B)
  Gibberellins done clear
  C)
  Cytokinins done clear
  D)
  Ethylene done clear
  View Solution play_arrow

• question_answer27)
  Which of the following induces flowering in short day plant [AFMC 1997]
  A)
  Gibberellins done clear
  B)
  Cytokinin done clear
  C)
  Auxins done clear
  D)
  Ethylene done clear
  View Solution play_arrow

• question_answer28)
  The cut flowers and vegetables can be kept fresh a long period by this plant hormone [Kerala PMT 2004]
  A)
  Gibberellins done clear
  B)
  Cytokinins done clear
  C)
  Auxins done clear
  D)
  Ethylene done clear
  E)
  2,4-dichlorophenoxy actic acid done clear
  View Solution play_arrow

• question_answer29)
  Senescence is inhibited by [Orissa JEE 2004]
  A)
  Ethylene done clear
  B)
  Gibberellic acid done clear
  C)
  Cytokinin done clear
  D)
  Abscissic acid done clear
  View Solution play_arrow

• question_answer30)
  Pruning of plants promotes branching because the axillary buds get sensitized to [AIIMS 2004]
  A)
  Ethylene done clear
  B)
  Gibberellin done clear
  C)
  Cytokinin done clear
  D)
  Indole acetic acid done clear
  View Solution play_arrow

• question_answer31)
  Cytokinins are formed in [BVP 2004]
  A)
  Roots done clear
  B)
  Leaves done clear
  C)
  Fruits done clear
  D)
  Stems done clear
  View Solution play_arrow