11. Plant tissue culture technique is a redefined method of ________
A. Hybridization
B. Vegetative propagation
C. Asexual reproduction
D. Selection
ANSWER: B
12. Polyethylene glycol is
A. Polyethylene glycol is
B. Electro fusion stimulant
C. Callus stimulant
D. Differentiation stimulant
ANSWER: A
13. Antisense RNA molecules have a sequence ______ to normal RNA transcripts
A. complementary.
B. non complementary.
C. opposite.
D. similar.
ANSWER: A
14. The product of protoplasm fusion is a _______.
A. uninucleated cell.
B. multinucleated cell.
C. homokaryon.
D. heterokaryon.
ANSWER: D
15. pBR322 is most commonly used _______.
A. plasmid.
B. cosmid.
C. bacteriophage.
D. bacteria.
ANSWER: A
16. A plant cell without cell wall is called _______.
A. tropoplast.
B. protoplast.
C. chloroplast.
D. chromoplast.
ANSWER: B
17. Genome of an organism refers to its total _______.
A. haploid DNA.
B. number of proteins.
C. number of chromosomes.
D. number of genes.
ANSWER: A
18. Enucleated protoplast is called _______.
A. cytoplast.
B. cybrid.
C. tonoplast.
D. duplast.
ANSWER: C
19. _________ is necessary for drying the washed glass goods.
A. Vacuum pump.
B. Hot air oven.
C. Heater.
D. Autoclave.
ANSWER: B
20. Which one of the following vitamins is used in PTC medium?
A. Pyridoxine.
B. Vitamin A.
C. Vitamin C.
D. Biotin.
ANSWER: A
