NEET Biology Cell - The Unit Of Life Question Bank

done Nucleus and Chromosomes Total Questions - 71

• question_answer1)
  Controlling centre of cell is [AFMC 1996]
  A)
  Nucleus done clear
  B)
  Nucleolus done clear
  C)
  Mitochondria done clear
  D)
  Ribosome done clear
  View Solution play_arrow

• question_answer2)
  The role of nucleus in regulating the morphology of plant was discovered in [DPMT 1982; MHCET 2001]
  A)
  Maize done clear
  B)
  Garden pea done clear
  C)
  Neurospora done clear
  D)
  Acetabularia done clear
  View Solution play_arrow

• question_answer3)
  Nucleolus is found in [AMU 1990]
  A)
  Protoplasm done clear
  B)
  Nucleus done clear
  C)
  Cytoplasm done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer4)
  The function of nucleolus is the synthesis of  [MP PMT 1994, 97; CPMT 2001]
  A)
  DNA done clear
  B)
  m-RNA done clear
  C)
  r-RNA done clear
  D)
  t-RNA done clear
  View Solution play_arrow

• question_answer5)
  Nuclear material without nuclear membrane is observed in [MP PMT 1994]
  A)
  Bacteria and green algae done clear
  B)
  Cyanobacteria and red algae done clear
  C)
  Bacteria and cyanobacteria done clear
  D)
  Mycoplasmas and green algae done clear
  View Solution play_arrow

• question_answer6)
  The nucleoplasm is continuous with the cytoplasm of a cell through [MP PMT 1994]
  A)
  Centriole done clear
  B)
  Endoplasmic reticulum done clear
  C)
  Nuclear pores done clear
  D)
  Golgi apparatus done clear
  View Solution play_arrow

• question_answer7)
  The term 'nucleolus' was coined by [AFMC 2001]
  A)
  R. Brown done clear
  B)
  H. Hooks done clear
  C)
  Bowman done clear
  D)
  Hanstein done clear
  View Solution play_arrow

• question_answer8)
  Karyolymph is a [Pb. PMT 2000]
  A)
  Nuclear sap done clear
  B)
  SPM membrane done clear
  C)
  Nuclear pore done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer9)
  The nuclear spindle consists of [MP PMT 1995, 98]
  A)
  One type of fibre done clear
  B)
  Two types of fibres done clear
  C)
  Three types of fibres done clear
  D)
  Four types of fibres done clear
  View Solution play_arrow

• question_answer10)
  Watson has calculated the nuclear pores of the mammalian cells to be ...... of the total surface area of the nucleus
  A)
  5 percent done clear
  B)
  50 percent done clear
  C)
  25 percent done clear
  D)
  10 percent done clear
  View Solution play_arrow

• question_answer11)
  The "master mind'' of the cell is
  A)
  Protoplast done clear
  B)
  Nucleolus done clear
  C)
  Nucleus done clear
  D)
  Plastid done clear
  View Solution play_arrow

• question_answer12)
  Pars amorpha is associated with [CMC Vellore 1994]
  A)
  Nucleus done clear
  B)
  Chloroplast done clear
  C)
  Mitochondria done clear
  D)
  Nucleolus done clear
  View Solution play_arrow

• question_answer13)
  Nucleoli are rich in  [CPMT 1982; CBSE PMT 1993; BHU 2001; MP PMT 2003]
  A)
  DNA and RNA done clear
  B)
  DNA, RNA and proteins done clear
  C)
  DNA done clear
  D)
  RNA done clear
  View Solution play_arrow

• question_answer14)
  Histone proteins found in nuclei of eukaryotes are [CPMT 2000]
  A)
  Acidic done clear
  B)
  Basic done clear
  C)
  Neutral done clear
  D)
  Amphoteric done clear
  View Solution play_arrow

• question_answer15)
  The structure of nuclear membrane facilitates [CPMT 1985, 2002]
  A)
  Synapsis of homologous chromosomes at meiosis done clear
  B)
  Nucleo-cytoplasmic exchange of materials done clear
  C)
  Anaphasic separation of daughter chromosomes done clear
  D)
  Organization of spindles done clear
  View Solution play_arrow

• question_answer16)
  The nucleus has [CBSE PMT 1993]
  A)
  One membrane with pores done clear
  B)
  Two membranes with pores done clear
  C)
  Two membranes with pores through which substances do not pass done clear
  D)
  Two membranes with pores through which macromolecules may pass done clear
  View Solution play_arrow

• question_answer17)
  Nucleus is absent in
  A)
  Sieve tubes done clear
  B)
  Companion cells done clear
  C)
  Chlorenchyma done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer18)
  True nucleus is absent in [CPMT 1987]
  A)
  Green algae done clear
  B)
  Fungi done clear
  C)
  Lichens done clear
  D)
  Bacteria done clear
  View Solution play_arrow

• question_answer19)
  Cell which does not contain nuclear membrane
  A)
  Bacteria done clear
  B)
  Algae done clear
  C)
  Fungi done clear
  D)
  Lichen done clear
  View Solution play_arrow

• question_answer20)
  What will happen if nucleus is removed
  A)
  The metabolism will increase done clear
  B)
  The cell will die done clear
  C)
  The metabolism will decrease done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer21)
  Amount of which one of the following is more in the nucleus but less in the chromosome
  A)
  DNA done clear
  B)
  RNA done clear
  C)
  Histone proteins done clear
  D)
  Non-histone proteins done clear
  View Solution play_arrow

• question_answer22)
  In nucleoplasm, a conspicuous body of spherical shape attached to a particular chromosome on a definite position is called [AIIMS 1998]
  A)
  Plasmid done clear
  B)
  Karyolymph done clear
  C)
  Nucleolus done clear
  D)
  Nuclear reticulumg done clear
  View Solution play_arrow

• question_answer23)
  Width of perinuclear space is
  A)
  \[\text{30}\,\,\text{to}\,\,\text{50}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  B)
  \[\text{50}\,\,\text{to}\,\,\text{80}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{100}\,\,\text{to}\,\,\text{300}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{300}\,\,\text{to}\,\,\text{1000}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer24)
  Who showed that the nuclear membrane has many pores or circular structures or annuli
  A)
  Fawcell done clear
  B)
  Strasburger done clear
  C)
  Butchen done clear
  D)
  Callan and Tomlin done clear
  View Solution play_arrow

• question_answer25)
  Nucleolemma is a part of
  A)
  Nuclear membrane done clear
  B)
  Nuclear reticulum done clear
  C)
  Nucleolus done clear
  D)
  Nucleoplasm done clear
  View Solution play_arrow

• question_answer26)
  Pore size of nuclear membrane is
  A)
  \[\text{100}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  B)
  \[\text{200}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  C)
  \[\text{300}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[\text{400}\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  View Solution play_arrow

• question_answer27)
  Study of nuclear cytology is called [JIPMER 1993]
  A)
  Neurology done clear
  B)
  Karyology done clear
  C)
  Mycology done clear
  D)
  Rhinology done clear
  View Solution play_arrow

• question_answer28)
  In which of the following places messenger RNA is formed in a living cell
  A)
  Inside mitochondria done clear
  B)
  Inside nucleolus done clear
  C)
  Inside nucleus but outside nucleolus done clear
  D)
  Inside endoplasmic reticulum done clear
  View Solution play_arrow

• question_answer29)
  An undefined or undifferentiated fibrillar nucleus is seen in [CPMT 1986]
  A)
  Eukaryotic cells done clear
  B)
  Prokaryotic cells done clear
  C)
  Cells of higher organisms done clear
  D)
  Cells of higher plants done clear
  View Solution play_arrow

• question_answer30)
  Nucleoproteins in a cell are synthesized in [CBSE PMT 1989]
  A)
  Outside the nucleolus done clear
  B)
  Nucleoplasm done clear
  C)
  Nuclear membrane done clear
  D)
  Nucleolus done clear
  View Solution play_arrow

• question_answer31)
  The condition when a large number of nucleus are found due to the absence of cytpolasmic division (which happens after telophase stage). This condition are called [AMU 2005]
  A)
  Polyploidy done clear
  B)
  Syncytium done clear
  C)
  Heterokaryon done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer32)
  Which type of protein is found in nucleus
  A)
  Simple protein done clear
  B)
  Structural protein done clear
  C)
  Conjugated protein done clear
  D)
  Derived protein done clear
  View Solution play_arrow

• question_answer33)
  Which of the following regulates and governs the physiological processes of the cell   [CPMT 1975]
  A)
  Protoplast done clear
  B)
  Nucleolus done clear
  C)
  Mitochondria done clear
  D)
  Nucleus done clear
  View Solution play_arrow

• question_answer34)
  Nucleus is enclosed in [MP PMT 1997]
  A)
  Double and non-porous layer done clear
  B)
  Double and porous layer done clear
  C)
  Single and non-porous layer done clear
  D)
  Single and porous layer done clear
  View Solution play_arrow

• question_answer35)
  DNA is mainly found in [CBSE PMT 1999]
  A)
  Nucleus only done clear
  B)
  Nucleus and cytoplasm done clear
  C)
  Cytoplasm only done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer36)
  Which of the following is not contained in a eukaryotic nucleus [MHCET 2002]
  A)
  Nucleosome done clear
  B)
  Nucleolus done clear
  C)
  Chromatin done clear
  D)
  Circular DNA molecules done clear
  View Solution play_arrow

• question_answer37)
  Nucleolus in eukaryotic cells is [AIEEE 2004]
  A)
  Visible in metaphase done clear
  B)
  The site for synthesis of RNA polymerase done clear
  C)
  Bounded by a memebrane done clear
  D)
  The side of packaging of rRNAs with ribosomal proteins done clear
  View Solution play_arrow

• question_answer38)
  The nucleus is separated from surrounding cytoplasm by a nuclear membrane, which is [Pb. PMT 2004]
  A)
  Single layered with pores done clear
  B)
  Single layered without pores done clear
  C)
  Double layered with pores done clear
  D)
  Double layered without pores done clear
  View Solution play_arrow

• question_answer39)
  Pars granulosa of nucleoplasm is made up of [AMU 2005]
  A)
  DNA done clear
  B)
  RNA done clear
  C)
  Protein done clear
  D)
  Protein and carbohydrate done clear
  View Solution play_arrow

• question_answer40)
  The sex chromosomes of plants were first discovered in [CMC Vellore 1993]
  A)
  Algae done clear
  B)
  Fungi done clear
  C)
  Pteridophyta done clear
  D)
  Flowering plants done clear
  View Solution play_arrow

• question_answer41)
  In which kind of study is banding done [MP PMT 2002]
  A)
  Creation of new species done clear
  B)
  Production of disease resistant variety done clear
  C)
  Mapping of chromosomes done clear
  D)
  Artificial pollination done clear
  View Solution play_arrow

• question_answer42)
  Minimum haploid numbers of chromosomes in plant kingdom [RPMT 1999]
  A)
  3 done clear
  B)
  2 done clear
  C)
  1 done clear
  D)
  4 done clear
  View Solution play_arrow

• question_answer43)
  A chromosome in which the centromere is situated near one end is known as [MP PMT 1998, 2002; AIIMS 2002]
  A)
  Telocentric done clear
  B)
  Acrocentric done clear
  C)
  Submetacentric done clear
  D)
  Metacentric done clear
  View Solution play_arrow

• question_answer44)
  L-shaped chromosomes are called [MP PMT 1999; BHU 2004]
  A)
  Sex chromosome done clear
  B)
  Acrocentric done clear
  C)
  Telocentric done clear
  D)
  Sub-metacentric done clear
  View Solution play_arrow

• question_answer45)
  Spindle chromosomes have [CBSE PMT 2000]
  A)
  Centriole done clear
  B)
  Kinetochore done clear
  C)
  Chromocentre done clear
  D)
  Chromomere done clear
  View Solution play_arrow

• question_answer46)
  Supercoiled structure of eucaryotic chromosome is explained by
  A)
  Taylor model done clear
  B)
  Freese-Taylor model done clear
  C)
  Nucleosome model done clear
  D)
  Nebel model done clear
  View Solution play_arrow

• question_answer47)
  Kinetochore is present in
  A)
  Mitochondria done clear
  B)
  Chromosomes done clear
  C)
  Lysosomes done clear
  D)
  Sphaerosomes done clear
  View Solution play_arrow

• question_answer48)
  A chromosome having sub-terminal centromere is called [MP PMT 1997]
  A)
  Telocentric done clear
  B)
  Acrocentric done clear
  C)
  Metacentric done clear
  D)
  Sub-metacentric done clear
  View Solution play_arrow

• question_answer49)
  Four different types of chromosomes but of the same size are serialized as [MP PMT 1995]
  A)
  Telocentric, metacentric, acrocentric, submetacentric done clear
  B)
  Metacentric, acrocentric, submetacentric, telocentric done clear
  C)
  Metacentric, submetacentric, acrocentric, telocentric done clear
  D)
  Metacentric, telocentric, acrocentric, submetacentric done clear
  View Solution play_arrow

• question_answer50)
  The beaded appearance of chromosome is known as
  A)
  Centromere done clear
  B)
  Chromomere done clear
  C)
  Centriole done clear
  D)
  Centrosphere done clear
  View Solution play_arrow

• question_answer51)
  Which of the following are used to define the karyotype of a species 1. The number of chromosomes 2. The chromosome length 3. The positions of the centromeres Code : [MP PMT 1993]
  A)
  1, 2 and 3 are correct done clear
  B)
  Only 1 and 2 are correct done clear
  C)
  Only 2 and 3 are correct done clear
  D)
  Only 1 and 3 are correct done clear
  View Solution play_arrow

• question_answer52)
  Chromosomes always exist [AMU 1990]
  A)
  In pairs done clear
  B)
  In association with mitochondria done clear
  C)
  Singly done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer53)
  Spindle fibres attach to chromosomes at their [MP PMT 1993; Pb. PMT 2000]
  A)
  Telomeres done clear
  B)
  Chromomeres done clear
  C)
  Kinetochores done clear
  D)
  Centromeres done clear
  View Solution play_arrow

• question_answer54)
  In a cell that is not dividing, the chromosomes are visible as a tangle of fine threads called [MP PMT 1993]
  A)
  Microtubules done clear
  B)
  Chromatin done clear
  C)
  Microfilaments done clear
  D)
  Nucleotin done clear
  View Solution play_arrow

• question_answer55)
  A tetrad consists of [MP PMT 1993]
  A)
  Four non-homologous chromatids done clear
  B)
  Four non-homologous chromosomes done clear
  C)
  Two sets of homologous chromosomes, each with two chromatids done clear
  D)
  Four homologous pairs of chromosomes done clear
  View Solution play_arrow

• question_answer56)
  Centromere is concerned with [BHU 1980; CBSE PMT 2005]
  A)
  Splitting of chromosomes done clear
  B)
  Formation of spindle fibres done clear
  C)
  Movement of chromosomes to poles done clear
  D)
  Duplication of DNA done clear
  View Solution play_arrow

• question_answer57)
  Basic structure of chromatin is composed of [MP PMT 1999, 2001]
  A)
  Non-histone proteins wrapped around DNA done clear
  B)
  Histone proteins wrapped around DNA done clear
  C)
  RNA wrapped around histones done clear
  D)
  DNA wrapped around histones done clear
  View Solution play_arrow

• question_answer58)
  Heterosome is called
  A)
  Somatic chromosome done clear
  B)
  B chromosome done clear
  C)
  Sex chromosome done clear
  D)
  Giant chromosome done clear
  View Solution play_arrow

• question_answer59)
  Centromere is part of [CBSE PMT 1997; BHU 2002; MP PMT 2003]
  A)
  Ribosomes done clear
  B)
  Mitochondria done clear
  C)
  Chromosome done clear
  D)
  Endoplasmic reticulum done clear
  View Solution play_arrow

• question_answer60)
  Tips of chromosome are called [MP PMT 1999; CPMT 1978; DPMT 1990]
  A)
  Centromere done clear
  B)
  Chromomere done clear
  C)
  Telomere done clear
  D)
  Metamere done clear
  View Solution play_arrow

• question_answer61)
  Polytene chromosomes in salivary glands of Drosophila are formed as a result of [Kerala PMT 2004]
  A)
  Endoduplication done clear
  B)
  Duplication without separation done clear
  C)
  Replication of DNA without cell division done clear
  D)
  All the above done clear
  E)
  None of these done clear
  View Solution play_arrow

• question_answer62)
  Minimum number of chromosomes are present in
  A)
  Haplopappus done clear
  B)
  Helianthus done clear
  C)
  Tagetus done clear
  D)
  Lotus done clear
  View Solution play_arrow

• question_answer63)
  The arrangement of genes on chromosomes is [CPMT 1980]
  A)
  Linear done clear
  B)
  Ovoid done clear
  C)
  Diffused done clear
  D)
  Spiral done clear
  View Solution play_arrow

• question_answer64)
  Chromosomes whose arms are equal are called [KCET 1999]
  A)
  Metacentric done clear
  B)
  Acrocentric done clear
  C)
  Concentric done clear
  D)
  Acentric done clear
  View Solution play_arrow

• question_answer65)
  Structure present over the chromosomes is [MP PMT 1995]
  A)
  Nucleolus done clear
  B)
  Centromere done clear
  C)
  Centrosome done clear
  D)
  Golgi complex done clear
  View Solution play_arrow

• question_answer66)
  Autosome is
  A)
  Achromatic done clear
  B)
  Sex chromosome done clear
  C)
  Chromosome other than sex chromosome done clear
  D)
  Not a chromosome done clear
  View Solution play_arrow

• question_answer67)
  DNA genetic material occurs by itself in lower organisms and combined with proteins as nucleoproteins in higher organisms. The nucleoprotein is organized in higher forms to form
  A)
  Chromosome done clear
  B)
  Nucleolus done clear
  C)
  Nucleotides done clear
  D)
  Nucleoside done clear
  View Solution play_arrow

• question_answer68)
  Identify the correct match between types of chromosomes and their descriptions

  	Chromosomes		Position of centromere
  A.	Metacentric	1.	At the tip
  B.	Submetacentric	2.	Almost near the tip
  C.	Acrocentric	3.	At the middle
  D.	Telocentric	4.	Slightly away from the middle

  Description [Kerala PMT 2004]
  A)
  A-1, B-3, C-2, D-4 done clear
  B)
  A-4, B-3, C-2, D-1 done clear
  C)
  A-1, B-2, C-3, D-4 done clear
  D)
  A-4, B-3, C-1, D-2 done clear
  E)
  A-3, B-4, C-2, D-1 done clear
  View Solution play_arrow

• question_answer69)
  Centromere may also be called as
  A)
  Centriole done clear
  B)
  Locus done clear
  C)
  Satellite body done clear
  D)
  Primary constriction done clear
  View Solution play_arrow

• question_answer70)
  The part which does not take strain amongst the following is [CPMT 1993]
  A)
  Chromatid done clear
  B)
  Centromere done clear
  C)
  Chromatin done clear
  D)
  Chromomere done clear
  View Solution play_arrow

• question_answer71)
  The telomeres of eukaryotic chromosomes consist of short sequences of [CBSE PMT 2004]
  A)
  Adenine rich repeats done clear
  B)
  Guanine rich repeats done clear
  C)
  Thymine rich repeats done clear
  D)
  Cytosine rich repeats done clear
  View Solution play_arrow