Sweet potato is homologous to:

1.	Potato	2.	Colocasia
3.	Ginger	4.	Turnip

Roots play insignificant role in absorption of water in: 
1. Pistia
2. Pea
3. Wheat
4. Sunflower

Root hairs develop from the region of:
1. Maturation
2. Elongation
3. Root cap
4. Meristematic activity

Sweet potato is a modified
1. Stem
2. Rhizome
3. Tap root
4. Adventitious root

Eye of Potato is
1. Apical bud
2. Axillary bud
3. Accessory bud
4. Adventitious bud

Which one of the following is correctly matched
1. Onion - Bulb
2. Ginger - Sucker
3. Chlamydomonas - Conidia
4. Yeast – Zoospores

An example of edible underground stem is
1. Carrot
2. Groundnut
3. Sweet potato
4. Potato

In ginger, vegetative propagation occurs through
1. Offsets
2. Bulbils
3. Runners
4. Rhizome

Which of the following pairs is not correctly matched?
Mode of reproduction            Example
1. Rhizome                             Banana
2. Binary fission                      Sargassum
3. Conidia                              Penicillium
4. Offset                                  Water hyacinth

Stems modified into flat green organs performing the functions of leaves are known as :
1. Scales
2. Cladodes
3. Phyllodes
4. Phylloclades