Botany MCQs

Roots grow downward as a weak ___ response:

Apical dominance occurs because IAA:

___ ,in  combination with auxin, stimulates cell division in plants and determines the course of differentiation.

..............is produced in large quantities in the climacteric phase of fruit ripening:

Unlike tropisms, nastic movements are in response to:

___ regulates stem elongation in young grass seedlings and most herbs:

The pathway leading to flowering for plants that requires vernalizations is the:

___ Stimulates the production of hydrolytic enzymes:

Braasinosteroids effect all of the things listed below expect:

The prevent fruits from dropping off their stems, farmers often spray the fruit with:

The Process of bolting is stimulated by:

Cytokinin promotes the growth of:

It is now believed that   vernalin is nothing special but actually is:

Auxin is synthesized is plants from:

In 1902, it was proposed that all living plant cells are:

In vascular plants, most cytokinins are produced in the:

..............of plants are reversible and allow the plant to advantageously orient leaves:

Stems will form roots more readily if ___ are attached than if they were removed:

Ripening of fruits, such as bananas, is hastened by:

Etiolated seedings grow:

In short day plants, ___, at least in part:

" Foolish seedling " disease in rice is caused by:

Auxin increases the___ of cell wall.

Cytokinins:

Short-day plants bloom in: