Department of Zoology, HPT Arts & RYK Science College Nashik                                                       Multiple Choice Questions By Dr. Kolhe B. G. on, T.Y.B.Sc - Paper I "BIOLOGICAL TECHNIQUES"
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1) A chemical substance used to preserve or stabilize biological material prior to microscopy or other examination is _________________ *
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2) Replacing the dehydrant with the substance that will be miscible with the embedding medium is referred to as ________________agent. *
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3) The process whereby the clearing agents are compulsory removed from the tissue and replaced y another medium is called__________________ *
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4) The process by which impregnation tissue is placed into a precise arranged position in a mold containing a medium which is then allowed solidify is called _______________ *
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5) The correct order of tissue processing is ___________________ *
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6) _________ helps to prevent the destruction and breakdown of cells and tissues. *
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7) Fixation is achieved by _______________ *
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8) Fixation is important because ________________. *
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9) ____________ among the following method is used for the fixation of organs. *
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10) __________ among the following method is used for fixation of organs. *
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11) Which among the following is clearing agent ______________? *
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12) Following part is not present in a microtome_______________. *
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13) In rotary microtome, the knife is usually positioned in a _________ *
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14) The ____________is a quite heavy and therefore stable, due to which generally does not vibrate. *
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15) In the 20th century ___________ was produced in large numbers including three moving parts and it is extremely reliable. *
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16) Negative stain is also known as __________. *
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17) A stain possessing a positively charged chromophore is called ___________. *
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18) A compound imparts colour to the compound is called __________. *
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19) __________ staining developed by Ehrlich in 1882. *
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20) ____________ Is the staining of selective living tissue components. *
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21) The unit of measurement that describe the number of moles of compound that contribute to the osmotic pressure of a chemical solution is called ______. *
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22) 1 parts per billion is __________times ore dilute than the parts per million. *
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23) The number of moles per solute per litre of a solution is called __________. *
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24) The number of moles of solute per kilogram of solvent is called ____________. *
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25) The concentration equal to the gram equivalent weight per litre of solution is called _____________ *
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