Question
What is the purpose of callus initiation in plant tissue
culture?Solution
 Callus initiation involves the formation of an amorphous mass of loosely arranged parenchyma cells arising from the proliferating cells of the parent tissue.
30Â Â Â Â Â Â 15Â Â Â Â Â Â Â 15Â Â Â Â Â Â Â 30 Â Â Â Â Â Â Â 120Â Â Â Â Â Â Â ?
...2Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.5Â Â Â Â Â Â Â Â Â Â 11.5Â Â Â Â Â Â Â Â 44Â Â Â Â Â Â Â Â Â Â Â 192.5Â Â Â Â Â 988
9Â Â Â Â Â Â Â Â Â a...
 47                         54          ?             74          87          ...
10 625 50 125 250 25 ?
...There are three series given below which are following with the same pattern.
Series I: 1, 12, 38, 193, 1355
Series II: 6, B, C, D, E
...Direction: Which of the following will replace ‘?’ in the given question?
2, ‘?’, 46, 136, 311, 605, 1086
5 14 56 220 1125 6786
...20 9 10 ? 29 71.5
...24 ? 14 16 39 88.5
...157, 159, 189, 319, ‘?’, 1 407 , 2749 Â
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