Question : Which of the following is responsible for transport of food and other substances in plants ?

Option 1: Xylem

Option 2: Phloem

Option 3: Chloroplast

Option 4: None of these

Question : Which bacterial strain developed from natural isolates by genetic manipulations can be used for treating oil spills?

Option 1: Pseudomonas

Option 2: Agrobacterium

Option 3: Clsotridium

Option 4: Nitrosomonas

Question : Which of the following micro-organism causes diseases like polio and chicken pox ?

Option 1: Bacteria

Option 2: Protozoa

Option 3: Algae

Option 4: Virus

Question : Direction: Which one of the given responses is the meaningful order of the following?

1. Infancy     2. Adult      3. Puberty       4. Childhood

Option 1: 1, 2, 3, 4

Option 2: 1, 4, 2, 3

Option 3: 1, 3, 4, 2

Option 4: 1, 4, 3, 2

Question : Direction: Which one of the given responses is the meaningful order of the following?

1. Fruit     2. Pollen     3. Corolla     4. Stamen

Option 1: 2, 4, 3, 1

Option 2: 2, 3, 4, 1

Option 3: 3, 1, 4, 2

Option 4: 2, 1, 3, 4