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

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

In ginger vegetative propagation occurs through

(1) rhizome

(2) offsets

(3) bulbils

(4) runners

In Bougainvillea, thorns are the modifications of

1. stipules

2. adventitious root

3. stem

4. leaf

Which of the following is not a stem modification?

1. Thorns of citrus

2. Tendrils of cucumber

3. Flattened structures of Opunita

4. Pitcher of Nepenthes

Stems modified into flat green organs performing the functions of leaves are known as

(1) phyllodes

(2) phylloclades

(3) scales

(4) cladodes

An example of an edible underground stem is

1. carrot

2. groundnut

3. sweet potato

4. potato

Which one of the following is correctly matched?

(1) Onion - Bulb

(2) Ginger - Sucker

(3) Chlamydomonas - Conidia

(4) Yeast - Zoospores