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Fill in the blanks with appropriate word/words

(a) A phase of growth which is maximum and fastest, is __________.

(b) Apical dominance, as expressed in dicotyledonous plants is due to the presence of more _____________ in the apical bud than in the lateral ones.

(c) In addition to auxin, a _________ must be supplied to the culture medium to obtain a callus in plant tissue cultures.

(d) ___________ of vegetative plants are the sites of photoperiodic perception.

Answers (1)

Ans.
(a) exponential phase
(b) auxin
(c) cytokinin
(d) Leaves

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