101. Grafting is impossible in monocot-because
A. Vascular bundles are scattered.
B. Meristem is absen
C. Collateral open vascular bundle
D. Radial vascular bundle
Answer : Option B
102. If vegetative growth of the plant takes place but flower production does not occur-then what could be the reason for this?
A. Imbalance of hormones
B. Photoperiod
C. Imbalance of sugar in water
D. Irregular transport of solute
Answer : Option B
103. What is the name of the technique for the production of large number of top?
A. Top production
B. Organo genesis
C. Micro culture
D. Embryo culture
Answer : Option B
104. Where does the culture of haploid pollen grain is useful in plant breeding?
A. For production of better hybrid
B. For production of homogametic organisms.
C. For production of disease causing organisms
D. None of this
Answer : Option C
105. Haploid plants are obtained by culture of-
106. Which of the following is associated with vegetative reproduction?
A. Combination of pre existing cytoplasm
B. Tissue culture
C. Endo static fertilization
D. (A) and (B) Both
Answer : Option C
107. With the help of which quick cell division could be induced?
108. Which auxin is used in callus and suspension culture technique in general?
A. Napthelene acetic acid
B. 2-4 Dichloro acetic acid
C. 2,4,5, Tri phenoxy acetic acid
D. 2,4 dichloro phenoxy acetic acid
Answer : Option A
109. Which of the following animal shows longitudinal binary fission?
110. Identify the mis-match statement regarding post fertilization events from the following statements.
A. Wall of ovary is converted in to pericarp.
B. Outer integument is converted in inner integument
C. Triploid nucleus develops as endosperm
D. Ovary is developed as fruit.
Answer : Option A