Plant Biotechnology MCQ Questions and Answers Part – 1
Plant Biotechnology MCQ Questions and Answers Part – 2
Plant Biotechnology MCQ Questions and Answers Part – 3
101. Glyphosate is a derivative of which amino acid?
A. Alanine.
B. Serine.
C. Valine.
D. Glycine.
ANSWER: D
102. Which one of the following is used mainly as a carbon source in PTC?
A. Sucrose.
B. Mannose.
C. Glucose.
D. Lactose.
ANSWER: A
103. Name the chemical compound produced by the plants.
A. Cytochemicals.
B. Histochemicals.
C. Phytochemicals.
D. Secondary metabolites.
ANSWER: C
104. The plating technique for cloning of single cells was given by Bergmann in ______.
A. 1960.
B. 1970.
C. 1980.
D. 1990.
ANSWER: A
105. Evan’s blue dye stains the ______ cells.
A. dead.
B. live.
C. dividing.
D. expanding.
ANSWER: A
106. Asynchronous refers to the cultured plant cells vary greatly in _______.
A. size.
B. shape.
C. cell cycle.
D. all the above.
ANSWER: D
107. _______ acts as gelling agents used in Plant Tissue Culture
A. Gelatin.
B. Agar.
C. Biogel.
D. All the above.
ANSWER: D
108. Plant growth regulators influence growth, metabolism and ________ of cultured cells.
A. differentiation.
B. elongation.
C. enlargement.
D. duplication.
ANSWER: A
109. _______ is to introduce a new trait to the plant which does not occur naturally in the species.
A. Genetically modified crops.
B. GMCs.
C. biotech crops.
D. all the above.
ANSWER: D
110. Cytoplasmic hybrids refer to________.
A. cytoplast.
B. chloroplast.
C. tonoplast.
D. protoplast.
ANSWER: A
111. The source of cellulolysin is _______.
A. Trichoderma viride.
B. Irpex lactus.
C. Aspergillus species.
D. Rhizopus species.
ANSWER: A
112. The source of Helicase is _______.
A. Trichoderma viride.
B. Irpex lactus.
C. Helix pomatia.
D. Rhizopus species.
ANSWER: C
113. The source of Zymolyase is _______.
A. Trichoderma viride.
B. Arthrobacter luteus.
C. Helix pomatia.
D. Rhizopus species.
ANSWER: B
114. FDA stands for _______.
A. Fluorescein diacetate.
B. Federal diacetate.
C. Fluorescein diacetate assay.
D. Federal Development Assay.
ANSWER: A
115. The dead protoplasts are selectively taken up ________ stain.
A. fluorescein.
B. trypan blue.
C. phenosafranine.
D. evans blue.
ANSWER: C
116. The newly formed cell walls stain ___________.
A. fluorescein.
B. calcofluor white.
C. phenosafranine.
D. evans blue.
ANSWER: B
117. ______ plants can be developed from ovary culture
A. Diploid.
B. Haploid.
C. Monocot.
D. Dicot.
ANSWER: B
118. Liquid nitrogen is used as a cryoprotectant at _____ degree celsius.
A. -196.
B. -150.
C. -80.
D. -79.
ANSWER: A
119. Solid carbondioxide is used as a cryoprotectant at _____ degree celsius.
A. -196.
B. -150.
C. -80.
D. -79.
ANSWER: D
120. Deep freezers are used as a cryoprotectant at _____ degree celsius.
A. -196.
B. -150.
C. -80.
D. -79.
ANSWER: C
121. Vapour phase nitrogen is used as a cryoprotectant at _____degree celsius.
A. -196.
B. -150.
C. -80.
D. -79.
ANSWER: B
122. . Slow freezing method of cryopreservation is done at _____ C/min.
A. 0.5-5.0.
B. b. 0.4-5.0.
C. 0.3-5.0.
D. 0.2-5.0.
ANSWER: A
123. Rapid freezing method of cryopreservation is done at _____ C/min.
A. -100 to -1000.
B. -200 to -1000.
C. -300 to -1000.
D. -400 to -1000.
ANSWER: C
124. Which one of the following is used as cryoprotectants?
A. DMSO.
B. Glycerol.
C. Ethylene.
D. All the above.
ANSWER: D
125. The transfer of desirable genes from one plant species to another is called as ___________ technology.
A. rDNA .
B. transgenic.
C. plant genetic transformation.
D. plant transformation.
ANSWER: C
126. What is the length of Ti plasmid?
A. 20kb.
B. 200kb.
C. 2kb.
D. 2000kb.
ANSWER: B
127. Which one of the following technique is mostly confined to protoplasts that can be regenerated to viable plants?
A. Electroporation.
B. Biolistic method.
C. Microinjection.
D. Silicon carbide fibres.
ANSWER: A
128. Opines are _______.
A. aminoacids.
B. lipids.
C. proteins.
D. nucleic acids.
ANSWER: A
129. The first clinical trials in humans, using a plant derived vaccine were conducted in _____.
A. 1987.
B. 1997.
C. 1977.
D. 1967.
ANSWER: B
130. The ingestion of transgenic potatoes is done by a toxin of _______.
A. E.coli.
B. Streptococcus sp.
C. Staphylococcus sp.
D. Bacillus sp.
ANSWER: A
131. The phenomenon of mature cells reverting to meristematic state to produce callus is _______.
A. dedifferentiation.
B. differentiation.
C. redifferentiation.
D. totipotency.
ANSWER: A
132. Nu body is a name given to _______.
A. ribosome.
B. microsome.
C. nucleosome.
D. centrosome.
ANSWER: C
133. Who is regarded as the Father of PTC?
A. Gottlieb Haberlandt.
B. Watson.
C. Barbara.
D. Crick.
ANSWER: A
134. The enzyme that can release the individual cells from the leaf tissues is ______.
A. macerozyme.
B. lysozyme.
C. zymogen.
D. chymotrypsin.
ANSWER: A
135. Addition of fresh nutrient medium and draining out the used medium is _________ culture
A. batch.
B. continuous.
C. discontinuous.
D. open continuous.
ANSWER: B
136. The mitochondrial DNA is _______.
A. like the nuclear DNA.
B. ss, linear.
C. ds, circular.
D. ss, circular.
ANSWER: C
137. Lepidoptera refers to _______.
A. bollworms.
B. beetles.
C. grosshopper.
D. aphids.
ANSWER: A
138. Coleoptera refers to _______.
A. bollworms.
B. beetles.
C. grosshopper.
D. aphids.
ANSWER: B
139. Lectins are plant ______ proteins
A. homo.
B. glyco.
C. hetero.
D. muco.
ANSWER: B
140. The expression of genes is made possible by the presence of _______.
A. promoters.
B. terminators.
C. suppressors.
D. inhibitors.
ANSWER: A
141. Virus infections of crops resulting in cell division are referred as _______.
A. hyperplasia.
B. hypoplasia.
C. necrosis.
D. plasia.
ANSWER: C
142. Electroporation is a technique used with _______.
A. calluses.
B. pollen.
C. protoplasts.
D. organs.
ANSWER: C
143. Chloroplast DNA is _______.
A. coded by the nucleus.
B. separate from nuclear DNA.
C. paternally inherited.
D. a subset of nuclear DNA.
ANSWER: B
144. A cell suspension culture requires _______.
A. organogenesis.
B. electroporation.
C. differentiation.
D. disaggregation.
ANSWER: D
145. The function of “low-copy-number DNA” is encoding ____________.
A. rRNA.
B. most genes.
C. a single gene.
D. tRNA.
ANSWER: B
146. The fastest way to ripe a tomato using tissue culture is by _________ culture.
A. anther / pollen.
B. protoplast.
C. plant organ.
D. callus.
ANSWER: C
147. A characteristic feature of the chloroplast genome is the presence of two _______.
A. simple tandem arrays.
B. repeat / repeat interspersions.
C. compound tandem arrays.
D. identical inverted repeats.
ANSWER: D
148. Sequencing efforts are underway for _______________ as a model for a small monocot genome.
A. rice
B. corn.
C. barley.
D. wheat.
ANSWER: A
149. Most plant tissue cultures are initiated from _______.
A. callus
B. explants
C. plantlets.
D. protoplasts.
ANSWER: B
150. Pores in protoplasts may be opened to DNA by the application of _______.
A. magnetism.
B. light.
C. enzymes.
D. electricity.
ANSWER: D
