Fill in the blanks.

A. Maximum growth is observed in ...............phase.

B. Apical dominance is due to ................

C. .............. initiate rooting.

D. Pigment involved in photoreception in flowering plants in .........

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Solution

A. Exponential

B. Auxin

C. Cytokinin

D. Phytochrome

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Question 13:

Fill in the places with appropriate word/words.
A phase of growth which is maximum and fastest is _________

Apical dominance as expressed in dicotyledonous plants is due to the presence of more _________ in the apical bud than in the lateral ones.

In addition to auxin, a _________ must be supplied to culture medium to obtain a good callus in plant tissue culture.

_________ of a vegetative plants are the sites of photoperiodic perception.

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