Capable of infecting infected tobacco plants. The juice of a healthy tobacco plant is also said by:
- ✓M.W. Beijerinck
- BE.C. Stakeman
- CA.K. Smith
- DIvanovsky
Answer: A.
View full solution →114 questions across 9 question groups — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.
M.C.Q (1 Marks)
36 Q→021 Marks Question
32 Q→032 Marks Questions
9 Q→043 Marks Question
6 Q→05Case study (4 Marks)
3 Q→065 Marks Questions
3 Q→07Fill In The Blanks.
10 Q→08True False[1 Marks ]
10 Q→09Match the following.
5 Q→One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Answer: A.
View full solution →Answer: B.
View full solution →Answer: B.
View full solution →Answer: C.
View full solution →Answer: D.
View full solution →| Column-I | Column-II |
| A. Fungi | (i) Mosaic disease of tobacco |
| B. T. O. Diener | (ii) Virus |
| C. Ivanovsky | (iii) Lichen |
| D. Cold and flu | (iv) Viroid |
| Column-I | Column-II |
| A. Albugo | (i) Plant kingdom |
| B. Alternaria | (ii) Prions |
| C. Progeny exchange | (iii) Phycomycetes |
| D. Madcow disease | (iv) Deuteromycetes |
| Column-I | Column-II |
| A. Heterocyst | (i) Saprotrophic protist |
| B. Gonialax | (ii) Amoebic protozoa |
| C. Powdery mildew | (iii) Cyanobacteria |
| D. Entamoeba | (iv) Dinoflagellate |
| Column-I | Column-II |
| A. Methanogen | (i) Eubacteria |
| B. Nostoc | (ii) Chrysophyta |
| C. Typhoid | (iii) In the intestine of animals |
| D. Diatom | (iv) Bacteria |
| Column-I | Column-II |
| A. Monera | (i) Animalia |
| B. Protista | (ii) Fungi |
| C. Chitin-rich cell wall | (iii) Eukaryotic |
| D. Cell wall absent | (iv) Prokaryotic |
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