(a) a factor found associated with A group blood
     (b) a factor associated with B group blood
     (c) RBC containing a particular antigen
     (d) None of the above
Ans: (c)
249. What Is Gastrin?
     (a) a hormone
     (b) an enzyme
     (c) lymph
     (d) venous blood
Ans: (a)
250. Plants grow In size because of
     (a) addition of cells
     (b) increase in size of cells
     (c) enlargement of cells
     (d) elongation of cells
Ans: (a)
251. Increase in size of plants is due to the activity of
     (a) meristematic tissues
     (b) conductive tissues
     (c) mechanical tissues
     (d) supporting tissues
Ans: (a)
252. Monopodial growth of a plant means that
     (a) terminal buds continue to be active
     (b) auxillary bud is active
     (c) terminal and auxillary buds are active
     (d) terminal and auxillary buds are active alternately
Ans: (a)
253. Monocarpic plants are those that produce fruits _______ during the life of the plant.
     (a) once
     (b) thrice
     (c) many times
     (d) twice
Ans: (a)
254. Seeds require for their germination.
     (a) air
     (b) water
     (c) viability
     (d) all the above
Ans: (d)
255. The part that germinates and grows first in a seed is
     (a) Plumule
     (b) Radicle
     (c) Cotyledons
     (d) Epicotyle
Ans: (b)
256. The radicle of the seeding always grows
     (a) towards the gravity
     (b) away from gravity
     (c) neutral to gravity
     (d) towards light
Ans: (a)
257. Hydrotropism means the growth of roots
     (a) away from water
     (b) towards water
     (c) into water
     (d) out of water
Ans: (b)
258. Geotropism is reaction of plants to the stimulus of
     (a) earth