Cell Division 11th Biology MCQ

 

Cell Division MCQ
Biology, 11^th, Chapter No.7
Maharashtra State Board

 

1	Life starts from a single cell in plants and animals called.
A	Cell
B	Zygote
C	Growth
D	Tissue
Ans	Zygote

 

2	A typical eukaryotic cell cycle is illustrated by human cells in culture, which divide approximately every.
A	12 hours
B	10 hours
C	24 hours
D	6 hours
Ans	24 hours

 

3	The interphase is divided in to.
A	G1 phase [Gap 1]
B	S phase [synthesis]
C	G2 phase [Gap 2]
D	All of these stages
Ans	All of these stages

 

4	Yeast cell can progress through all the four stages of the cell cycle in only about.
A	60 minutes
B	90 minutes
C	30 minutes
D	45 minutes
Ans	90 minutes

5	The centrioles, in animal cells, initiate their replication in the cytoplasm during.
A	G1 phase
B	G2 phase
C	S phase
D	None of these phases
Ans	G2 phase

  

6	The s phase marks the period during which replication of DNA takes place. It is during this time that the content of DNA doubles, from
A	2c to 4c
B	4c to 2c
C	[1n or 2n]
D	[2n or 1n]
Ans	2c to 4c

 

7	Chromosome duplication without nuclear division refers to.
A	Mitosis
B	Endomitosis
C	Meiosis
D	Androgenesis
Ans	Mitosis

 

8	During which stages [or prophase I substages] of meiosis do you expect to find the bivalents and DNA replication respectively?
A	Zygotene and s phase [ of interphase prior to prophase I]
B	Both
C	Pachytene and interphase [ just prior to prophase I]
D	None of these
Ans	Zygotene and s phase [ of interphase prior to prophase I]

 

9	The two chromatids of a metaphase chromosome represent.
A	Replicated chromosome to be separated at anaphase
B	Homologous chromosome of a diploid set
C	Non-homologus chromosome joined at the centromere
D	Maternal and paternal chromosomes
Ans	Replicated chromosome to be separated at anaphase

 

10	Recombination of genes occur at.
A	Prophase I in meiosis
B	Prophase II in meiosis
C	Metaphase II in meiosis
D	Prophase in mitosis
Ans	Prophase I in meiosis

  

11	In animal cells, cytokinesis in volves.
A	The contraction of the contractile ring of microfilament
B	Depolymerisation of kinetochore microtubules
C	A protein kinase that phosphorylates other enzymes
D	The separation of sister chromatids
Ans	The contraction of the contractile ring of microfilament

 

12	Four daughter cells formed after meiosis are.
A	Genetically different
B	Multinucleate
C	Genetically similar
D	Anucleate
Ans	Genetically different

 

13	The number of chromatids in a chromosome at anaphase is.
A	1 in mitosis and 2 in meiosis
B	2 each in mitosis and meiosis
C	2 in mitosis and 4 in meiosis
D	2 in mitosis and 1 in meiosis
Ans	1 in mitosis and 2 in meiosis

 

14	During cell division, sometime there will be failure of separation of sister chromatids. This event is called.
A	Non- disjunction
B	Coincidence
C	Complementation
D	Interference
Ans	Non-disjunction

 

15	What is true about telophase stage?
A	All of these
B	Nuclear envelope, nucleolus,
C	Chromosomes cluster at opposite spindle poles
D	Chromosome lose their identity as discrete elements
Ans	All of these

  

16	In which stage of the cell cycle histone proteins synthesized in a eukaryotic cell?
A	During s-phase
B	During entire prophase
C	During telophase
D	During G2 stage of prophase
Ans	During s-phase

 

17	The centromere is situated close to its ends and farming one extremely short and one very long arm in.
A	Acrocentric chromosome
B	Telocentric chromosome
C	Sub-metacentric chromosome
D	Metacentric chromosome
Ans	Acrocentric chromosome

 

18	The stage between two meiotic division is called interkines is and.
A	Is generally short lived and followed by prophase II
B	Involves duplication of genes and centrioles
C	Is followed by prophase I
D	Is long lived
Ans	Is generally short lived and followed by prophase II

 

19	In which stage the chromosome appears as thin long thread?
A	Leptotene
B	Zygotene
C	Prophase
D	Pachytene
Ans	Leptotene

 

20	Anastral mitosis is found in.
A	All living organisms
B	Lower animals
C	Higher plants
D	Higher animals
Ans	Higher plants

  

21	Chromosomes counting is best done during.
A	Metaphase
B	Telophase
C	Late prophase
D	Late anaphase
Ans	Metaphase

 

22	Meisosis II bring about
A	Separation of chromatids
B	Separation of homologous chromosomes
C	Synthesis of DNA and centromere
D	Separation of sex chromosome
Ans	Sepration of chromatids

 

23	Meosis is
A	Reductional division
B	Multiplication division
C	Equationai division
D	Disjunctional division
Ans	Reductional division

 

24	The term meiosis was coined by
A	Blackman
B	Flemming
C	Robertson
D	Former and more
Ans	Former and more

                                                     

25	In meiosis, the chromatids separate during
A	Metaphase I
B	Anaphase I
C	Anaphase II
D	Metaphase II
Ans	Anaphase II

  

26	In the meiotic cell division four daughter cell are produced by two successive division in which.
A	First division is reductional and second is equational
B	First division is equationai, second is reductional
C	Both divisions are equationai
D	Both divisions are reductional
Ans	First division is reductional and second is equational

 

27	In some organisms karyokinesis is not followed by cytokinesis as a result of which multinucleate condition arises which is called.
A	Syncytium
B	Meiosis I
C	Cell-plate
D	Meiosis II
Ans	Syncytium

 

28	The cell having more than two complete sets of chromosomes are called.
A	Diploid
B	Haploid
C	Polyhybrid
D	Polyploid
Ans	Polyploid

 

29	The small disc shaped structure at the surface of centromeres is called.
A	Kinetochores
B	Sister chromatids
C	Microtubule
D	Golgi complex
Ans	Kinetochores

 

30	Mitosis accomplishes the segregation of duplicated chromosome in to daughter nuclei [karyokinesis], but the cell it self is divided in to two daughter cells by a separate process called.
A	Cytokinesis
B	Karyokinesis
C	Nucleolous
D	Chromosome clusters
Ans	Cytokinesis

  

31	In plants apical cells and the cambium tissue continue to divide all their life, they are called.
A	Meristemic tissue
B	Cambium tissue
C	Equational division
D	Syney tium
Ans	Meristemic tissue

 

32	Mitosis is divided in to
A	Prophase
B	Metaphase
C	Anaphase
D	All of these phases
Ans	All of these phases

 

33	Which one of the following statements about the particular entity is ture?
A	The gene for producing insulin is present in every body cell
B	Nucleosome is formed of nucleotides
C	DNA consists of a core of eight histones
D	Centromere is found in animal cell, Which produces aster during cell division.
Ans	The gene for producing insulin is present in every body cell

 

 

34	The 3’-5’ phosphodiester linkages inside a poly nucleotide chain serve to join.
A	One nucleoside with another nucleoside
B	One nucleotide with another nucleotide
C	One nitrogenous base with pentose sugar
D	One DNA strand with other DNA. Strand
Ans	One nucleotide with another nucleotide

 

35	What are those structures that appear as ‘beads-on-string’ in the chromosome, when viewed under electron microscope?
A	Genes
B	Nucleotides
C	Nucleosomes
D	Base pairs
Ans	Nucleosomes

  

36	Cytoskelon is made up of:
A	Cellulosic microfibrills
B	Proteinaceous filaments
C	Calcium carbonate granules
D	Callose deposits
Ans	Proteinaceous filaments

 

37	Synapsis occur between.
A	Spindle fibres and centromere
B	Two homologous chromosomes
C	A male and a female gamete
D	M RNA and ribosomes
Ans	Two homologous chromosomes

 

38	During mitosis ER and nucleolus begin to disappear at.
A	Late prophase
B	Early metaphase
C	Late metaphase
D	Early Prophase
Ans	Late prophase
39	What would be the number of chromosome of the aleurone cells of a plant with u2 chromosome in its root tip cells?
A	42
B	63
C	84
D	21
Ans	63

 

30	Crosing over that results in genetic recombination in higher organisma occur between.
A	Sister chromatids of bivalent
B	Non-sister chromatids of a bivalent
C	Two daughter nuclei
D	Two different bivalents
Ans	Non-sister chromatids of bivalent

  

41	At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?
A	During G2-stage of prophase
B	During S-phase
C	During entire prophase
D	During telophase
Ans	During S-phase

 

42	The salivary gland chromosomes in the dipteran larvae are useful in gene mapping because.
A	These are much longer in size
B	These are easy to stain
C	These are fused
D	They have endoreduplicated chromosome
Ans	They have endoreduplicated chromosome

 

43	Centromere is required for.
A	Movement of chromosome toward poles
B	Cytoplasmic cleavage
C	Crossing over
D	Transcription
Ans	Movement of chromosome toward poles

 

44	If a diploid cell is treated with colchicine then it becomes.
A	Triploid
B	Tetraploid
C	Diploid
D	Monoploid
Ans	Tetraploid

 

45	In the somatic cell cycle.
A	In G1-phase DNA content is double the amount of DNA present the original of cell
B	DNA replication takes place in S-phase
C	A short interphase is followed by a long mitotic phase
D	G2-phase follows mitotic phase
Ans	DNA replication takes place in S-phase

  

46	If you are provided with root tips of onion in your class and asked to count the chromosome, which of the following stage can you most conveniently look in to?
A	Metaphase
B	Telophase
C	Anaphase
D	Prophase
Ans	Metaphase

 

47	Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle?
A	Decondensation from chromosomes and reassembly of the nuclear lamina
B	Transcription from chromosome and reassembly of the nuclear lamina
C	Formation of the contractile ring and formation of the phragmoplast
D	Formation of the contractile ring and transcription from chromosome
Ans	Decondensatin from chromosome and reassembly of the nuclear lamina

 

 

48	Extra nuclear DNA [genes] are located in
A	Lysosomes and chloroplasts
B	Golgi complex and ribosomes
C	Chloroplasts and mitochondria
D	Ribosomes and mitochondria
Ans	Chloroplasts and mitochondria

 

49	Mitotic spindle is mainly composed of which protein?
A	Actin
B	Myoglobin
C	Myosin
D	Actomyosin
Ans	Actin

 

50	Extra nuclear chromosomes occur in.
A	Peroxisome, ribosome
B	Chloroplast, mitochondria
C	Mitochondria, ribosome
D	Chloroplast, lysosome
Ans	Chloroplast, mitochondria

  

51	Which of the following occurs more than one and less than five in a chromosome?
A	Chromatid
B	Chromosome
C	Centromere
D	Telomere
Ans	Telomere

 

52	Ribosomes are produced in.
A	Nucleolus
B	Cytoplast
C	Mitochondria
D	Golgi body
Ans	Nucleolus
53	Best material for the study of mitosis in laboratory is.
A	Root tip
B	Leaf tip
C	Ovary
D	Anther
Ans	Root tip

 

54	Crossing over in diploid is responsible for.
A	Dominance of gene
B	Linkage between genes
C	Segregation of alleles
D	Recombination of linked alleles
Ans	Recombination of linked alleles

 

55	DNA is mainly found in.
A	Nucleus only
B	Cytoplasm only
C	Both a] and b]
D	Nucleolus
Ans	Nucleus only

  

56	The eukaryotic genome differs from the prokaryotic genome because .
A	DNA is complexed with histones in prokaryotes
B	Repetitive sequences are present in eukaryotes
C	Genes in the former cases are organised in to operons
D	DNA is circular and single stranded in prokaryotes
Ans	Repetitive sequences are present in eukaryotes

 

57	During cell cycle, the DNA replication occur in.
A	M-phase
B	S-phase
C	G1-phase
D	G2-phase
Ans	S-phase

 

 

58	During cell division, the spindle fibres attach to the chromosome at a region called.
A	Chromocentre
B	Kinetochore
C	Centriole
D	Chromomere
Ans	Kinetochore

 

59	Extra nuclear DNA [genes] are located in
A	Lysosomes and chloroplasts
B	Golgi complex and ribosomes
C	Chloroplast and mitochondria
D	Mitochondria and lysosome
Ans	Chloroplast and mitochondria

 

60	Which one of the following structures will not be common to mitotic cells of higher plants?
A	Cell plate
B	Centriole
C	Centromere
D	Spindle fibres
Ans	Centriole

  

61	Genes located on mitochondrial DNA.
A	Generally show maternal in heritance
B	Are always inherited from the male parent
C	Show biparental inheritance like the nuclear genes
D	Are not inherited
Ans	Generally show maternal in heritance

 

62	Centromere is a part of.
A	Ribosomes
B	Chromosome
C	Mitochondria
D	Endoplasmic reticulum
Ans	Chromosome
63	How many mitotic divisions are needed for a single cell to make 128 cells?
A	7
B	14
C	28
D	64
Ans	7

 

64	The point, at which polytene chromosome appear to be attached together, is called.
A	Centriole
B	Centromere
C	Chromomere
D	Chromocentre
Ans	Choromocentre

 

65	Lampbrush chromosomes oocur during.
A	Prophase of mitosis
B	Diplotene of meiosis
C	Metaphase of meiosis
D	Interphase
Ans	Diplotene of meiosis

 

66	In cell cycle, DNA replication takes place in.
A	G1- phase
B	G2- phase
C	Mitotic metaphase
D	S-phase
Ans	S-phase

  

67	The exchange of genetic material between chromatids of paired homologous chromosomes during first meiotic division is called.
A	Transformation
B	Chiasmata
C	Crossing over
D	Synapsis
Ans	Crossing over

 

68	During cell division in apical meristem the nuclear membrane appears in.
A	Metaphase
B	Anaphase
C	Telophase
D	Cytokinesis
Ans	Telophase

 

69	Balbiani rings [puffs] are sites of.
A	RNA and protein synthesis
B	DNA replication
C	Synthesis of polysaccharides
D	Synthesis of lipids
Ans	RNA and protein synthesis

 

70	In salivary gland chromosomes polytene chromosomes pairing is.
A	Abesent
B	Occasional
C	Formed between non-homologous chromosome
D	Formed between homologous chromosomes
Ans	Formed between homologous chromosomes

  

71	Meiosis-II performs.
A	Separation of sex chromosomes
B	Synthesis of DNA and centromeres
C	Separation of homologous chromosomes
D	Separation of chromatids
Ans	Separation of chromatids

 

72	Best stage to observe shape, size and number of chromosomes is.
A	Interphase
B	Metaphase
C	Prophase
D	Telophase
Ans	Metaphase
73	Meiosis has evolutionary significance because it results in.
A	Genetically similar daughters
B	Four daughter cells
C	Eggs and sperms
D	Recombinations
Ans	Recombinations

 

74	Nucleoproteins are synthesized in.
A	Nucleoplasm
B	Nuclear envelope
C	Nucleolus
D	Cytoplasm
Ans	Cytoplasm

 

75	Segregation of mendelian factor (Aa) occurs during diplotene.
A	Diplotene
B	Anaphase-I
C	Zygotene\pachytene
D	Anaphase-I
Ans	Anaphase-I

  

76	Hammerlings experiments of Acetabularia involved exchangeing.
A	Cytoplasm
B	Nucleus
C	Rhizoid and stalk
D	Gametes
Ans	Nucleus

 

77	In telophase of mitosis ,the mitotic spindle breaks down and nuclear membranes form this is essentially the opposite of what happen in …
A	Prophase
B	Metaphase
C	Anaphase
D	None of these
Ans	Prophase

 

78	The sequence of events by which a cell duplicates its genome synthesizes other constituents of the cell and eventually cell is termed as.
A	M-phase
B	Kary chorists
C	Cell cycle
D	None of these
Ans	M-phase

 

79	Lampbrusn chromosomes are seen in which typical stage?
A	Meiotic prophase
B	Mitotic prophase
C	Mitotic anaphase
D	Mitotic metaphase
Ans	Meiotic prophase

 

80	Experiments on Acetabularia by Hammering proved the role of.
A	Cytoplasm in controlling differentiation
B	Nucleus in heredity
C	Chromosomes in heredity
D	Nucleocytoplasmic ratio
Ans	Nucleus in heredity