CSS Zoology Questions & Answers

Q.  Which of the following statement is true for viruses:

a. They always have RNA
b. They always have DNA
c. They are only bacteriophage
d. They multiply in host cells


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Karyon is the basis of differentiation in between:
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MCQs:  In his experiment Stanley Miller was successful to demonstrate the formation of amino acids by passing an electric discharge in a mixture of ammonia, water, hydrogen and:
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MCQs:  True Nucleus is absent in bacteria because:
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MCQs:  According to most accepted theories, the atmosphere of earth before origin of life consisted of a mixture of:
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MCQs:  To prove that organic molecules formed in the primitive ocean were respobsible for origin of life on earth, Millar carried out their synthesis from:
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MCQs:  The hard Liithosphere was studded with volcanic eruptions pouring out hot lava. The Nitrogen and Carbon Atoms of atmosphere formed nitrides and Carbides respectively by reacting with metallic atoms of lava. The hot water vapours of atmosphere and carbides reacted to form Methane and water vapours and metallic nitrides reacted to form Ammonia. This statement regarding origin and evolution of organic compounds is:
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MCQs:  Amino acids, Sugards, Glycerol, Fatty acids, Nitrogen bases etc. formed in the primitive ocean survived because they were neither oxidized nor putrified. The reason were:
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MCQs:  During the course of time of origin of life, the nucleic acids were formed in the primitive ocean. Certain proteins like histones associated with these nucleic acids to form nucleoproteins which appeared as "Self-duplicating System" by virtue of this property the nucleic acid became capable of performing hereditary function. The statement according to your opinion is:
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MCQs:  The coaservates which acquired nucleoproteins became first cellular organisms and their parts later became modified during the course of time due to chemical changes in the nucleic acid is the view of the scientist:
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MCQs:  According to Horowitz (1945) and Leslie Orgel (1975) the life originated in the sea as free naked gene which linked into chains and later proteins gathered around them to form viruses. The viruses by gathering other molecules and forming a thin binding membrane organized into prokaryotes. Whether this statements is:
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MCQs:  Jean Baptist de Lamarck - a French Naturalist, besides giving his famous theory of organic, Evolution, also coined the word:
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MCQs:  The ultimate source of organic variations is:
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MCQs:  Lamarck's theory of organic evolution was published in the book entitled:
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MCQs:  Lamarck's "Theory of Organic Evolution" is based upon:
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MCQs:  "The animals of colder countries have small ears, short tail and limbs to avoid more loss of heat" is the theme of:
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MCQs:  Which of the following facts make Lamarckism doubtful:
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MCQs:  Best suited examples given in favour of Lamarckian Theory are:
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MCQs:  Neck and fore limbs in African giraffe increased in length as a result of:
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MCQs:  Which of the following facts definitely casts doubt on Lamarckian theory:
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MCQs:  Which of the following concepts is attributed to Lamarck:
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