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
