131. Which of the following is a correct food cycle?
(a) Grasshopper, snake, vulture, frog
(b) Grasshopper, frog, snake vulture
(c) Frog, grasshopper, snake, vulture
(d) Frog, snake, grasshopper, vulture
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132. A triplet codon in mRNA which is usually starting point in protein synthesis is
(a) AUG
(b) UGA
(c) UUA
(d) UGC
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133. Which of the following is not correctly matched?
(a) Har Gobind Khorana – Model of synthetic gene
(b) Watson and Crick – Double-helix of DNA
(c) Robert Koch-Blood group
(d) Gregor Mendel-Laws of heredity
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134. Which of the following techniques is used to make numerous copies of a specific segment of DNA quickly and accurately?
(a) Transcription
(b) Translation
(c) Polymerase chain reaction
(d) Ligase chain reaction
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135. Double-stranded RNA is found in
(a) smallpox virus e
(b) wound tumor virus
(c) tobacco mosaic virus
(d) influenza virus
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136. The enzyme which can cut molecules of DNA into segments is known as
(a) DNA polymerase
(b) DNA ligase
(c) restriction enzyme
(d) DNA gyrase
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137. Which one of which one of the following bacteria is commonly used for production of transgenic plants?
(a) Escherichia colis
(b) Staphylococcus aureus
(c) Bacillus thuringiensis
(d) Agrobacterium tumefaciens
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138. The nucleus is absent in
(a) algae
(b) fungi
(c) bacteria
(d) lichens
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139. Tikka disease of groundnut is caused by
(a) Fusarium
(b) Colletotrichum
(c) Alternaria
(d) Cercospora
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140. The alga-yielding agar-agar is
(a) Rhodymenia
(b) Gelidium
(c) Batrachospermum
(d) Harveyella
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141. Prof. S. R. Kashyap was
(a) mycologist
(b) bryologist
(c) paleobotanist
(d) algologist
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142. The branch of botany dealing with extinct plants is called
(a) cytology
(b) paleobotany
(c) morphology
(d) ecology
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143. Linnaeus gave a system of nomenclature called
(a) binomial system
(b) natural systems
(c) artificial system
(d) phylogenetic system
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144. Gynobasic style is the characteristic of
(a) Poaceae
(b) Liliaceae
(c) Solanaceae
(d) Lamiaceae
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145. The oblique septum and swollen placenta are found in the family
(a) Asteraceae
(b) Solanaceae
(c) Brassicaceae
(d) Lamiaceae
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146. Double-helical structure of DNA was given by
(a) Watson and Crick
(b) Jacob and Monod
(c) Griffith
(d). H. G. Khorana
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147. Kohler and Milstein developed themethod for
(a) DNA fingerprinting
(b) Golden rice production
(c) monoclonal antibody production
(d) ‘Flavr Savr’ tomato production
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148. DNA fingerprinting was discovered (developed) by
(a) Alec Jeffreys
(b) A. Kornberg
(c) Maurice Wilkins
(d) Meselson and Stahl
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149. Who among the following is regarded as the ‘father of biotechnology’?
(a) Karoly Ereky
(b) Edward Jenner
(c) Johann Mendel
(d) Kary Mullis
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150. In bacteria, conjugation was discovered offreys by
(a) Lederberg and Tatum
(b) Zinder and Lederberg
(c) Watson and Crick
(d) Hershey and Chase
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