Virus

Question 1

VIRUS

Answer 1

1. possess nucleic acid with protein coat
2. require plant host’s protein synthesizing machinery for replication

Question 2

MODE OF INVASION OF VIRUS

Answer 2

1. mechanical damage to cell
2. vectors

Question 3

MEANS OF VIRUS TRANSMISSION

Answer 3

1. mechanical
2. biological vector
3. seed
4. pollen
5. infected vegetative part

Question 4

PLAST DISEASE CAUSED BY VIRUS

Answer 4

1. rice tungro
2. tobacco mosaic
3. papaya ringspot
4. banana bunchy top
5. abaca bunchy top
6. tomato leaf curl
7. tulip color break
8. rice grassy stunt

Question 5

RICE TUNGRO VECTOR

Answer 5

Nepothettix virescens

Question 6

BANANA/ABACA BUNCHY TOP VECTOR

Answer 6

Pentalonia nigronervosa

Question 7

TULIP COLOR BREAK

Answer 7

Tulip breaking virus

Question 8

RICE GRASSY STUNT VECTOR

Answer 8

Nilaparvata lugens