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101.

In cell cycle, which stage is misnomerly called resting -I is called:-A. S-phaseB. TelophaseC. CytokinesisD. Interphase

Answer» Correct Answer - D
102.

Pairing of homologous chromosomes is called :-A. DisjunctionB. SynapsisC. SegregationD. Polyteny

Answer» Correct Answer - B
103.

Separation of homologous chromosomes during Anaphase -I is called:-A. SynapsisB. DisjunctionC. NondisjunctionD. Crossing over

Answer» Correct Answer - B
104.

According to widely accepted "Fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several repects. In this regard, which of the following statements is incorrectA. Proteins can also undergo flip-flop movements in the lipid bilayerB. Many proteins remain completely embeded within the lipid bilayerC. Proteins in cell membranes can travel within the lipid bilayerD. Proteins can remain confined within certain domains of the membranes

Answer» Correct Answer - A
105.

Which of the following arrangements of microtubules is correct for flagellum?A. 9 peripheral singlets +2 central doubletsB. 9 peripheral triplets +2 central singlesC. 9 peripheral doublets +2 central singletsD. 9 peripheral doublets +2 central triplets

Answer» Correct Answer - C
106.

In which stage the DNA is doubled :-A. MetaphaseB. AnaphaseC. InterphaseD. Prophase

Answer» Correct Answer - C
107.

Ingestion of large molecules by animal cell is called

Answer» Correct Answer - D
108.

The signigicance of Meiosis is that it -A. Produce four cells having chromosomal number equal to mother cellB. Occurs in all types of cellsC. Maintains the constant Chromosomes number to a particular speciesD. Growth of animal body ograns

Answer» Correct Answer - C
109.

Cell Cycle of an ordinary animal cell -A. `2noverset(" Mitosis ")tonoverset(" Fertilization ")to2noverset(" Meiosis ")to2n`B. `noverset(" Meiosis ")to2noverset(" Fertilization ")to2noverset(" Mitosis ")ton`C. `2noverset(" Meiosis ")tonoverset(" Fertilization ")to2noverset(" Mitosis ")to2n`D. `2noverset(" Fertilization ")to(n)overset(" Mitosis ")to2noverset(" Meiosis ")ton`

Answer» Correct Answer - C
110.

Which part of plant is suitable for the study of meiosis?A. Root apexB. OvaryC. AntherD. Shoot apex

Answer» Correct Answer - C
111.

Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene","(i)Bouqute stage"),("(B)Zygotene","(ii)Chiasma visible"),("(C) Diplotene","(iii)Terminalisation"),("(D)Leptotene","(iv) Gene exchange"),("(E)Diakinesis","(v) Synapsis"):}`A. A-i, B-ii, C-iii, D-iv, E-vB. A-iv, B-v, C-ii, D-i, E-iiiC. A-iii, B-iv, C-v, D-ii, E-iD. A-ii, B-iii, C-iv, D-i, E-v

Answer» Correct Answer - B
112.

A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characterstics.

Answer» Correct Answer - B
113.

Select the wrong statement from the following :A. The chloroplasts are generally much larger than mitochondriaB. Both chloroplasts and mitochondria contain an inner and an outer mimbraneC. Both chloroplasts and mitochondria have an internal compartment, the thylakoid spaceD. Both chloroplasts and mitochondria contain DNA

Answer» Correct Answer - C
114.

Synaptionemal complex first appear :-A. LeptoteneB. PachyteneC. ZygoteneD. Diplotene

Answer» Correct Answer - C
115.

Synnaptonemal complex is characteristic of :-A. Mitotic chromosomesB. Leptotene chromosomesC. Paired meiotic chromosomesD. Metaphase

Answer» Correct Answer - C
116.

Diakinesis represents :-A. transition to prophaseB. transition to metaphaseC. transition to anaphaseD. transition to telophase

Answer» Correct Answer - B
117.

In meiosis, centromeres of chromosomes divide during-A. anaphase of meiosis-IIB. metaphase of meiosis-IC. anaphases of meiosis-ID. prophase of meiosis-II

Answer» Correct Answer - A
118.

Which of the two enents restore the normal number of chromosomes in life cycle?A. Mitosis and MeiosisB. Meiosis and fertilisationC. Fertilisation and mitosisD. Only meiosis

Answer» Correct Answer - B
119.

Basal body is :-A. CentrioleB. PlasidC. CiliaD. Mitochondria

Answer» Correct Answer - A
120.

Which rpresents aqueous compartments ?A. A, BB. D, CC. A, DD. B, D

Answer» Correct Answer - D
121.

What is the average value of labelled F ?A. `0.2 mum`B. `0.5 mum`C. `1.0 mum`D. `4.1 mum`

Answer» Correct Answer - B
122.

The figure given below show the structure of plasma membrane, with its parts labelled from A to E, Identify the correct :- A. `Ato52` percent of erythrocyte membraneB. `Bto`Movement of this measured fluidity of membraneC. `Cto` Help in faciliated transport of polar moleculesD. `Dto` Its polar tail contain saturated hydrocarbon

Answer» Correct Answer - B
123.

Assertion :- During S-phase, amount of DNA per cell boubles. Reason :- During S-phase, there is no increase in cromosome number.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are false.

Answer» Correct Answer - B
124.

DNA is not found in :-A. NucleusB. MitochondriaC. ChloroplastD. Ribosome

Answer» Correct Answer - D
125.

Rough E.R. mainly responsible for :-A. Protein synthesisB. cell wall formationC. Lipid synthesisD. Cholesterol synthesis

Answer» Correct Answer - A
126.

Mitochondrial DNA is :-A. NakedB. CircularC. Double strandedD. All the above

Answer» Correct Answer - D
127.

The solid linear cytoskeletal elements having a diameter of 6 nm and made up of a single type of monomer are known asA. MicrotubluesB. MicrofilamentsC. Intermediate filamentsD. Lamins

Answer» Correct Answer - B
128.

Hetero-chromatin is :-A. Darkly stained part of chromatinB. Lightly stained part of cristaeC. Lightly stained part of granaD. Scattered Lobes in cytoplasm

Answer» Correct Answer - A
129.

Chromosome with centromere at one End :-A. MetacentricB. SubmetacentricC. TelocentricD. Acrocentric

Answer» Correct Answer - C
130.

Condensation of chromosomes and appearance of astral rays occur during:-A. ProphaseB. MetaphaseC. AnaphaseD. Telophase

Answer» Correct Answer - A
131.

One genome is which type of set of Chromosomes?A. HaploidB. DiploidC. TriploidD. Polyploid

Answer» Correct Answer - A
132.

GERL is associated withA. GolgibodyB. E.R.C. MitochondriaD. Lysosomes

Answer» Correct Answer - D
133.

Label the structure indicated by (i), (ii), (iii) and (iv)- A. (i)-Chromatid, (ii)-Centriole, (iii)-Centromere, (iv)-ChromosomeB. (i)-Chromosome, (ii)-Centriole, (iii)-Centromera, (iv)-ChromatidC. (i)-Chromatid, (ii)-Centromere, (iii)-Centriole, (iv)-ChromosomeD. (i)-Chromosome, (ii)-Centromere, (iii)-Centriole, (iv)-Chromatid

Answer» Correct Answer - A
134.

Which cell organelle stnthesises steroids :-A. E.R.B. GolgibodyC. PeroxisomesD. Lysosomes

Answer» Correct Answer - A
135.

The smooth E.R. is generally made up of :-A. CisternaeB. TubulesC. VesicleD. All the above

Answer» Correct Answer - B
136.

Which of the following provides mechanical support and shape to the cell :-A. Golgi complesB. CentriolesC. LomasomesD. E.R.

Answer» Correct Answer - D
137.

Semiautonomous cell organelle is :-A. MitochondriaB. RibosomeC. Plasma membraneD. Peroxysome

Answer» Correct Answer - A
138.

Power house of cell is :-A. NucleusB. DNAC. MitochondriaD. ATP

Answer» Correct Answer - C
139.

A cell that is entering the mitotic phase (M-phase) of cell cycle is :-A. always haploid or diploid and with duplicated chromosomesB. either haploid or diploid and with duplicated chromosomesC. either haploid or diploid and with duplicated or unduplicated chromosomesD. always diploid and with unduplicated chromosomes

Answer» Correct Answer - B
140.

Assertion : Small cells are metabolically less active Reason : K.I. of small cells is less.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are false.

Answer» Correct Answer - D
141.

Cells which are metabolically more active, have-A. less number of mitochondriaB. more number of mitochondriaC. no relation between metabolic activities and number of mitochondriaD. no mitochondria, to provide more space in cytoplasm for metabolic activities

Answer» Correct Answer - B
142.

Which type of chromosome is present in the prophase of cell cycle?A. 2 chromatidB. 1 chromatidC. 4 chromatidD. 8 chromatid

Answer» Correct Answer - A
143.

Which does not occurs in prophase?A. Decondensation of chromatinB. Condensation of chromatinC. Appearance of chromosomeD. Disappearance of nuclear membrane and nucleolus

Answer» Correct Answer - A
144.

A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphase of this cell cycle?A. 200 DNA & 100 chromosomesB. 100 DNA & 50 chromosomesC. 100 DNA & 100 chromosomesD. 50 DNA & 25 chromosomes

Answer» Correct Answer - C
145.

Nucleolar organizer is a :-A. Primart constrictionB. Secondart constrictionC. Tertiary constrictionD. Centriole

Answer» Correct Answer - B
146.

Thick-thread stage occurred in :-A. LeptoteneB. ZygoteneC. PachyteneD. Diplotene

Answer» Correct Answer - C
147.

In which stage of cell division, number of chromosomes best counted:-A. ProphaseB. MetaphaseC. TelophaseD. Interphase

Answer» Correct Answer - B
148.

In which stage the chromosomes appear thin and long thread-likeA. zygotene through pachyteneB. LeptoteneC. Pachytene - chiasmata terminalisationD. Diakinesis

Answer» Correct Answer - B
149.

Polysome is formed byA. A ribosome with several subunitsB. Ribosomes attached to each other in a linear arrangementC. Several ribosomes attached to a singe m RNAD. Many rivbosomes attached to a strand of endoplasmic reticulum

Answer» Correct Answer - C
150.

Polysome is a chain of :-A. PinosomesB. PhagosomesC. MicrosomesD. Ribosomes

Answer» Correct Answer - D