CELL DIVISION; FILL IN THE BLANKS. {NCERT BASED}

QUESTION 

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1] The interphase lasts more than __ % of the duration of mitosis [cell cycle].

2] In animal, mitotic cell division is seen in the _________ somatic cell.

3] __________ of cell division is heterotypic or reduction division. 

4] Meiosis occurs during __________ in plants & animal and leads to formation of haploid gametes.

5] Meiosis is ________ division which give rise to four cells.

6] The ________ which has undergone duplication during S phase of interphase, begins to move towards opposite pole during prophase phase.

7] In _______ phase of mitosis [cell cycle], centromeres splits, chromatids get separated & move towards opposite pole. 

9] By the end of _________ stage of prophase-1, the nucleolus disappear & the nuclear envelope also break down.

10] The ____________ are the sites at which crossing over occur between non-sister chromatids of the homologous chromosome during meiosis-1. 

11] _______ of mitosis [cell cycle] marks the period during which DNA replication take place.

12] The process of formation of progeny cell from pre-existing cell is called as __________.

13] Four _________ cells are formed at the end of meiosis-2

14] Meiosis ensures the production of haploid phase in the life cycle _______________ organism whereas fertilization restores the diploid phase.

16] The complete disintegration of nuclear envelop mark the start of __________ phase of mitosis.

17] In telophase of mitosis [cell cycle], __________ develop around the chromosome cluster at each pole forming two daughter nuclei.

19] In _________ stage of meiosis-2, the chromosome aligns at the equator & thew microtubule from opposite poles of the spindle get attached to the kinetochores of sister chromatids.

21] Human cell divide once in approximate every _______ hour.

22] The time interval between two cell cycle is called _________or____________ time.

23] During __________, cell prepares the cell to divide.

24] Meiosis 1 is initiated after the parental chromosome have replicated to produce identical sister chromatids at the _________. 

26] The duration of metaphase cycle is ______% of cell cycle.

27] Cytokinesis starts in ____________ and completed in late telophase.

28] In meiosis, prophase-1 is _________ in duration compare to prophase-2. 

29] During Anaphase-2, sister chromatids move to opposite poles of the cell due to shortening of _________ attached to kinetochores.

31] All cell reproduces- each parental cell giving rise to _____ daughter cell each time they divide.

32] In cell cycle, there is short dividing _______ phase & long non dividing growing __________ phase.

34] Prophase of meiosis-1 is ________ in period compare to prophase of mitosis.

36] Cell at the end of ________ phase of mitosis [cell cycle], do not show Golgi apparatus, endoplasmic reticulum, nucleolus under microscope.

37] During cytokinesis in animal, the furrow appears at equator due to interaction of actin & myosin, the ring contracts thus furrow move from periphery to central is called as _________ order. 

39] In __________ stage of meiosis-1, the bivalent chromosome align on the equatorial plate and microtubule from opposite side of the spindle attach to kinetochore of homologous chromosomes.

41] The mitosis starts with nuclear division, corresponding to separation of daughter cell called as ________________. 

42] G1 phase is also called as ______ or ________ or ________.

43] Division of chromosome does not occur in _________ & only segregation of chromosome occurs.

44] During _________ stage {Prophase of meiosis-1}, the chromosome became visible under the light microscope.

46] During metaphase of mitotic cell cycle, small disc shaped structure at the surface of the centromeres is called as __________.

47] Mitosis occurs in some lower plants & some lower insects, ______ cell divides.

49] During _________ stage of meiosis-2, meiosis ends in which the two groups of chromosomes once again get enclosed by the nuclear envelope.

50] During interphase, hereditary material occurs in the form of ____________.

51] During S phase mitosis [cell cycle], DNA replication begins in the nucleus& the __________ duplicates in the cytoplasm.

52] ___________ is method of cell division which is also called as direct cell division.

54] In meiosis, gametes are form from specialized _______ cells.

56] During prophase of mitosis [cell cycle], each centrosome radiates out microtubule called as ________, which later form mitotic apparatus.

57] During ________ phase of mitosis [cell cycle], Nucleolus, Golgi complex & ER reforms. 

59] ________ results in reduction of chromosome number by half.

60] During animal mitosis, the growth of cell occurs ___________.

61] The sequence of events by which cell duplicates its genome, synthesis the other constituent of the cell & eventually divide into two daughter cell is called as ____________. 

62] G1 phase is the longest phase of interphase lasting _______ % duration of total cell cycle.

64] The complex formed by pair of synapsed homologous chromosome is called ________ during meiosis-1.

66] ________ is the stage used for karyotyping of chromosome.

67] Cytokinesis occurs by two method- __________ & ___________.

69] In __________ stage of meiosis-1, the nuclear membrane & nucleolus reappear.

70] _________ take place in the somatic cell.

71] In adult animal, give example of cell which never divide - ___________.

72]  Interphase is having high metabolic activities so called as ___________ phase.

73] The number of chromosomes is reduced to ______ after meiosis.

74] During _________ stage {Meiosis-1}, the chromosome start pairing.

75] During anaphase stage of meiosis, centromere divide during _________ and does not divide during _______ stage

76] The division of cytoplasm in cell cycle is called as ___________.

77] Mitotic cell division in the ________ tissue results in a continuous growth of plant throughout the life.

79] ____________ does not stop with the formation of mature organism but continue throughout its life cycle.

81] Cell growth is continuous process {In term of cytoplasm increase}, __________ synthesis occur only during one specific stage in the cell cycle.

82] G2 phase is also called as _______ or ________ or _________.

84] During __________ stage of Meiosis-1, the four chromatids of each bivalent chromosomes become distinct & clearly appears as tetrads.

86] The metaphase is characterized by all chromosome from equator are connected to sister chromatid at opposite pole by __________.

87] During cytokinesis of plant cell, the vesicles formed from Golgi apparatus & some ER accumulate to form _______.

89] ___________ is initiated after the parental chromosome have replicated to produce identical sister chromatids at the S phase.

91] _____ phase corresponds to interval between mitosis & initiation OF DNA replication.

92] _________ phase is most important phase, involving a major reorganization of all component of cell.

94] During prophase of meiosis-1, the enzyme ________ helps crossing over is the exchange of genetic material between two homologous chromosomes.

96] Karyon mean __________.

97] Mitosis helps in replacing upper layer of the __________, cells of the lining of _____ & ____ cells are being constantly replaced.

99] During meiosis-1, the nuclear membrane reappear and nucleolus reappear, cytokinesis allows and this is called as ________.

100] During M-phase, hereditary material occurs in the form of ___________.

101] The cell of _________ divide once every 90 minutes.

102] In plants, mitotic cell division is seen in both _______ & _______ cells.

104] Meiosis involves two sequential cycle of nuclear cell division but only a _________ cycle of DNA replication.

106] _________ phase is the shortest phase of cell cycle.

107] Telo means _____ & phase means stage.

109] Meiosis-2 is like mitosis, but occurs in ______ cell.

110] ________ occur in the reproductive cell or at the time of germination of zygote.

111] During S phase of cell cycle, the amount of DNA increases by __________.

112] Cell grow maximum during _____ phase of mitosis {cell cycle}.

114] During meiosis-1, the pairing of chromosome together is called as __________.

116] Mitosis is also called as ___________ because it occurs in body cell of animals.  

117] The process by which cytokinesis occurs in plant is called as _____________.

119] Division of _________ occurs during meiosis-2.

121] The ______ represent the phase when actual cell division occurs.

122] Time taken for completion of G2 phase is _______% of total cell cycle.

124] The beginning of _______ stage {Meiosis-1}, is recognized by the dissolution of the synaptonemal complex.

126] The duration of prophase in mitosis _______%.

127] During plant cell cytokinesis, wall formation starts in center & move towards outwards to meet to meet existing cell wall, this process is called as ___________.

129] The stage between two meiotic division is called as _________.

130] ________ is single division which produce two cell.

131] The cell that do not divide further, exit G1 phase to enter an inactive stage is called as _____________ stage of mitosis [cell cycle].

132] The number of chromosomes in progeny & parent cell is same, it is also called as ________ division.

133] ___________ is type of cell division- homotypic or equational division.

136] During metaphase of mitosis, the tightening of chromosomal fibers brings all chromosome at equator called as _____________ or ___________.

137] A fragment or part of body can regenerate the whole body like wound heal due to _________ division of healthy cell surrounding the area of injury.

139] All the ________ daughter cell produce by meiosis are genetically different from each other & also differ from mother cell.

141] Interphase in mitotic cell division is also called as __________ or ___________ phase.  

142]  G1 phase in mitosis is also called as _______ or ________ or _________.

144] In meiotic-1 phase, the paired chromosome are called ______________ chromosome.

146] During Anaphase of mitotic cell division, the sister chromatids separate from each other & the daughter chromatids are now called as _________ of future daughter nuclei.

147] The cell division that reduces the chromosome number by half is called as _________.

149] In __________ of meioisis-2, the nuclear membrane disappear & the chromosome again become impact.

151] During _____ phase, protein is synthesized in preparation of mitosis while cell growth continues. 

152] Amitosis is type of __________ reproduction which occurs in bacteria, protozoan, diseased cell or old cell.

154] The cells undergoing mitosis may be ______ or ________ cell.

156] Ana means _____ & phase means stage.

157] During __________ phase of mitotic cell division, the spindle fibers disappear around the poles.

159] During prophase-1 [ zygotene] stage, each chromosome has _____ chromatid but appear as a single thread.

160] Plant mitosis is generally controlled by hormone _________.

161] During S phase of mitotic cell cycle, there is no increase in _________ number.

162] In cell cycle [MITOSIS], ___________ is marked by initiation of condensation of chromosomal material.

164] During prophase of meiosis-1, X shaped structure is formed due to the tendency of recombined homologous of the bivalent to separate from each other is called as __________. 

165] During mitosis, cytokinesis occur in animal by _______ method.

166] During _______ phase of Mitosis cell cycle, chromosome uncoiled to lose their individuality & converted into thin chromatin material.

167] The process by cytokinesis occurs in animal is called as _______________.

169] Any sexually reproducing organism starts its life cycle from single celled- __________.

171] During _____ phase of mitosis [cell cycle], the cell is metabolically active & continuously growing, but do not replicate its DNA.

172] The complete disintegration of the nucleus envelops mark the start of ________ phase in mitosis [cell cycle]. 

173] M-phase takes ____% of cell cycle, while Interphase takes _____% 0f cell cycle.

176] During Anaphase of mitosis, half chromosome moves towards one pole & remaining half towards opposite pole, it is called as ________ movement.

177] In some organism, Karyokinesis is not followed by cytokinesis which leads to multinucleated condition occurs which leads to formation of _____________.

179] During ___________ stage of meiosis-2, it begins with the simultaneously splitting of the centromere of each chromosome which was holding sister chromatids together.

180] During plant mitosis, cell growth occurs __________.

181] The _________ represent the phase between two successive mitotic phases.

182] Some cell- _______, _______ & ________ permanently present in G-0 phase of mitosis [cell cycle].

184] During ________ stage of meiosis-1, there is terminalization of chiasmata.

186] The plane of alignment of the chromosome at metaphase [Mitotic cell division] is called ____________ or ___________ plate. 

187] Meiosis results in the production of _________ phase in the life cycle of sexually reproducing organism.

189] During Telophase-2, meiosis ends with the formation of _______.

191] Division of cell into two identical, the newly formed cell is called as _________ or _________ cell.

192] During _____ phase of mitotic cell division, the cell is metabolic active & continuously grow, but does not replicate its DNA.

193] Division of centromere occur during __________ type of cell division.

194] During meiosis-1, __________ stage is characterized by the appearance of recombination of nodules, the sites at which crossing over occurs between non sister chromatids of the homologous chromosomes.

195] The number of chromosome remain _________ after mitosis.

196] In prophase [mitosis], chromosome material condense & seen to be composed of _________ attached together at the centromere.

197] Electron microscope of meiosis-1 stage indicates that chromosome synapsis is accompanied by the formation of complex structure called ___________.

199] In __________ stage of meiosis-1, the homologous chromosomes separate, while sister chromatids remain associated at their centromeres.

200] The compaction of chromosome continue through out ____________ stage {Meiosis-1}

ANSWER 

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1] 95

2] Diploid

3] Meiosis-1

4] Gametogenesis 

5] Double

6] Centrosomes

7] Anaphase

9] Diakinesis

10] Recombination nodule

11] S phase

12] Cell division

13] Haploid

14] Sexually reproducing

16] Metaphase

17] Nuclear envelop

19] Metaphase-2

20] 

21] 24

22] Generation or doubling

23] Interphase

24] S phase

26] 0.4

27] Late anaphase or early telophase

28] Longer

29] Microtubules

31] 2

32] Mitotic, Interphase.

34] Longer

36] Prophase

37] Centripetal

39] Metaphase-1

41] Karyokinesis

42] Gap-1, post mitotic, pre synaptic

43] Meiosis-1

44] Leptotene

46] Kinetochores

47] Haploid

49] Telophase-2

50] Chromatin

51] Centriole

52] Amitosis

54] Diploid 

56] Asters

57] Telophase

59] Meiosis

60] Centripetally

61] Cell cycle

62] 30 to 40%

64] Bivalent or Tetrad

66] Metaphase

67] Cell furrow or cell plate formation

69] Telophase-1

70] Mitosis

71] Heart

72] Energy

73] Half

74] Zygotene

75] Anaphase-2, Anaphase-1

76] Cytokinesis

77] Meristematic

79] Cell division

81] DNA

82] Gap2 or Pre-mitotic or Post-synaptic

84] Pachytene     

86] Spindle fibers

87] Cell plate

89] Meiosis-1

91]G1

92] M phase

94] Recombinase

96] Nucleus

97] Epidermis, gut & blood

99] Dyad of cells

100] Chromosome

101] Yeast

102] Haploid & Diploid

104] Single

106] Anaphase

107] End

109] Haploid 

110] Meiosis

111] Doubles

112] G1

114] Synapsis

116] Somatic cell division

117] Cell plate formation

119] Centromere

121] M phase

122] 10 to 20%

124] Diplotene

126] 2.1%

127] Centrifugal

129] Interkinesis

130] Mitosis

131] Quiescent

132] Equational

133] Meiosis-2

136] Congression or metakinesis

137] Mitotic

139] four

141] Resting or prepatory phase

142] GAP-1, POST MITOTIC, PRE synaptic phase 

144] Homologous

146] Chromosome

147] Meiosis

149] Prophase-2

151] G2

152] Asexual

154] Diploid or Haploid

156] Up

157] Telophase

159] Two

160] Cytokinin

161] Chromosome

162] Prophase

164]Chiasmata

165] Cleavage

166] Telophase

167] Cell furrow method

169] Zygote

171] G1

172] Metaphase

173] 5%,95%

176] Anaphasic movement

177] Syncytium

179] Anaphase-2

180] Centrifugally

181] Interphase

182] Heart, nerve, Osteoclast.

184] Diakinesis

186] Metaphase or equatorial

187] Haploid

189] Tetrad of cells

191] Progeny or Daughter

192] G1

193] Meiosis-2

194] Pachytene

195] Same

196] Chromatids

197] Synaptonemal

199] Anaphase-1

200] Leptotene