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Biology Test 57
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    20

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    How many different kinds of amino acids are specified by the genetic code ?
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    linkage

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    Mendel found certain traits not ti assort independently. It is due to
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    Safflower

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    Oil which has maximum percentage of Polyunsaturated fatty acids is of.
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    Affected individual has early ageing

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    Which one among the following is not correct about Down\'s syndrome?
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    Iodine

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    Goitre or abnormal enlargement of the the thyroid gland is caused by the deficiency of _________ .
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    Hemophilia

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    A hereditary disease in which the blood does not clot and the affected person may bleed to death even from a small cut, is called
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    Complementarity of the two strands

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    Which of the following features of DNA makes it uniquely suited to store and transmit genetic information from generation to generation ?
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    Ga

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    Which of the following elements is a metal?
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    GACUAUCG

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    DNA tempalte sequence of CTGATAGC is transcribed over mRNA as
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    reduce transpiration

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    In dry regions, the leaf size of a tree becomes smaller. It is so to ?
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    Endoplasmic reticulum and Ribosome

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    Which of the following cell organelles play the most significant role in protein synthesis ?
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    1,2,3 and 4

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    Which of the following elements are present in all proteins ? 1. Carbon        2. Hydrogen  3. Oxygen    4. Nitrogen
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    mRNA

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    Transcription involves synthesis of
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    Plasma membrane

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    Which among the following cell organelles is semi-permeable?
  • Question 15/25
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    Single stranded

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    A DNA with unequal nitrogen bases would most probably be
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    lay eggs

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    Monotremes are unique mammals because they _______.
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    All echinoderms are viviparous

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    Which one of the following statements is not correct ?
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    Hydra

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    Which of the following creatures has no blood but respires ?
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    X-ray crystallography

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    Nuclcotide arrangement in DNA can be seen by?
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    Salivary glands of vertebrates

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    Poison glands of snakes are homologous to?
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    A-(2),B-(1),C-(4),D-(3)

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    Match List-I with List-II and select the correct answer using the codes given below the lists : List-I                               List-II (Scientists )                      (Achievement ) A. Arber and Smith        1. Developed transgenic plants with Agro-bacterium                                     T- DNA B. Feldman                  2. Discovered endonucleases C. Mullis                      3. Discovered reverse transcriptase D. Temin and Baltimore  4. Discovered Polymerase chain reaction
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    planting and conservation of avenue trees

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    The name of Smt. Thimmakka is associated with the?
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    Escherichia coli

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    Experimental material in the study of DNA replication has been?
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    Viroids consist of a single -stranded RNA molecule

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    Which one of the following statements is correct ?
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    1,2 and 4 are correct

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    Consider the following statements: AIDS is transmitted 1. By sexual intercourse 2. By blood transfusion 3. By mosquitoes and other blood sucking insects. 4. Across the placenta Of these statements :
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