A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in:

1. Chrysanthemum

2. Pistia

3. Jasmine

4. Pineapple

When a shoot tip transforms into a flower,

1. It is always solitary

2. The flower is always short-lived

3. It is never solitary

4. The flower is always long-lived

Chief characteristics of stem do not include:

1. Develops from the plumule

2. Positive phototropic nature

3. Presence of nodes and internodes

4. Endogenously developed multicellular hair

Match aerial modifications of stem given in column I with their descriptions in column II and choose your answer from the codes given below:

Codes:

In Australian Acacia, the petiole or any part of rachis becomes flattened taking the shape of a leaf and turning green in color. This structure is called as:

(1) Phylloclade

(2) Cladode

(3) Phyllode

(4) bulbil