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