1461. A form of low pruning to about 2 m up the stem:

A. Zero pruning
B. Brashing *
C. Pollarding
D. None of the above

1462. A photosynthesis unit consists :

A. 1000 light harvesting chlorophyll molecules
B. 800 light harvesting chlorophyll molecules
C. 200 light harvesting chlorophyll molecules
D. 400 light harvesting chlorophyll molecules *

1463. A physical or chemical agent that frees plant organ or tissue from infection is a :

A. Antiseptic
B. Deodarant
C. Disinfectant *
D. Germicide

1464. A process of initiating a conscious and purposeful action is called :

A. Motivation *
B. Education
C. Coordination
D. Action

1465. A porous soil or geological formation which will yeild sufficient quantities of water is called :

A. Well *
B. Aquifer
C. Both a and B
D. None of them

1466. A protein produced by living cells of micro-organism plants and animals that can catalyze specific organic reaction is known as :

A. Hormone
B. Enzyme *
C. Catalyst
D. None of the above

1467. A recessive gene for resistance to disease can be transferred from one parent to another using :

A. Pureline selection
B. Backcross breeding *
C. Pedigree method
D. Bulk method

1468. A short duration crop in between two main seasonal crops is termed as :

A. Cash crop
B. Inter crop
C. Companion crop
D. Catch crop *

1469. A single seed plant of tobacco may produce as many as :

A. 1,000 seeds
B. 10,000 seeds *
C. 1,00,000 seeds
D. 2,00,000 seeds

1470. A Spherical particle embedded in the phospholipoid protein of thylakoid lamellae is known as :

A. Granule
B. Quantasome *
C. Both a and b
D. None of these