Question

Bacterial leaf blight of rice is caused by a species of

A. Xanthomonas  
B. Pseudomonas
C. Alternaria
D. Erwinia
Answer :   Xanthomonas
Solution :
Bacterial leaf blight of rice is caused by a species of Xanthomonas. Mature rice plant are infected by these bacteria, lesion begins as water soaked stripes on the leaf blades and eventually would increase in length and width becoming yellow to grayish-white until the entire leaf dries up.

Releted MCQ Question on
Botany >> Biological Classification

Releted Question 1

Pick up the wrong statement

A. Protista have photosynthetic and heterotrophic modes of nutrition
B. Some fungi are edible
C. Nuclear membrane is present in Monera
D. Cell wall is absent in Animalia
Releted Question 2

Five kingdom system of classification suggested by R.H. Whittaker is not based on:

A. Presence or absence of a well defined nucleus
B. Mode of reproduction
C. Mode of nutrition
D. Complexity of body organisation
Releted Question 3

In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?

A. Fungi
B. Plantae
C. Protista
D. Monera
Releted Question 4

In five kingdom system, the main basis of classification is

A. structure of nucleus
B. mode of nutrition
C. structure of cell wall
D. asexual reproduction

Practice More Releted MCQ Question on
Biological Classification


Practice More MCQ Question on Biology Section