Which of the following is a fungal disease of plants? MCQ with Answer and Explanation

Question
Which of the following is a fungal disease of plants?
A. Tobacco mosaic
B. Late blight of potato
C. Crown gall
D. Citrus canker
Answer: Option B
Solution (By JKSSB Mock Tests)
Late blight of potato is caused by the oomycete Phytophthora infestans (historically considered a fungus). It caused the Irish Potato Famine. Tobacco mosaic is viral, citrus canker is bacterial (Xanthomonas), crown gall is bacterial (Agrobacterium tumefaciens). Fungal plant diseases also include rust, smut, and powdery mildew. Oomycetes are now classified under Chromista but traditionally studied in mycology.
This question belongs to: Science Biology
Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1
Ascariasis is a common helminthic disease caused by:
A. Taenia solium
B. Wuchereria bancrofti
C. Ascaris lumbricoides
D. Ancylostoma duodenale
Discuss
Get Complete Subject PDF for Science

Correct Answer: Option C

Explanation:
Ascariasis is caused by the large roundworm Ascaris lumbricoides, which is the most common human helminth infection globally. Infection occurs through the ingestion of embryonated eggs from contaminated soil, food, or water. The worms reside in the small intestine and can cause malnutrition, intestinal blockage, and other complications.
This question belongs to: Science Biology
Question #2
Typhoid fever is caused by which bacterium?
A. Vibrio cholerae
B. Salmonella typhi
C. Streptococcus pneumoniae
D. Mycobacterium leprae
Discuss
Get Complete Subject PDF for Science

Correct Answer: Option B

Explanation:
Typhoid fever is a life-threatening systemic infection caused by the bacterium Salmonella typhi. It is transmitted through contaminated food and water. Symptoms include sustained high fever, headache, abdominal pain, and sometimes a rash. The Widal test is a common diagnostic test for typhoid. S. pneumoniae causes pneumonia, and V. cholerae causes cholera.
This question belongs to: Science Biology
Question #3
Assertion (A): The leaves of cacti are reduced to spines.
Reason (R): Spines reduce water loss by transpiration.
A. A true, R false.
B. Both A and R are true, but R is not the correct explanation.
C. Both A and R are true, and R is the correct explanation.
D. A false, R true.
Discuss
Get Complete Subject PDF for Science

Correct Answer: Option C

Explanation:
Cacti, xerophytes, have spiny leaves to minimize surface area and transpiration, conserving water. Thus, R correctly explains A.
This question belongs to: Science Biology
Explore All Biology MCQs
Today's Top Topics
Biology 2054 Physics 1287 chemistry 1089
Explore Subjects
Maths 5575 Geography GK 6121 Economy GK 2220 History GK 3374 Accountancy and Statistics 3179
Practice Mix
The 'Deccani' style of painting developed in:
He ___ be very upset; he's not talking to anyone.
Which cloud type appears as thin, feathery streaks?
Two numbers are in the ratio 4:8 and their sum is 512. Find the numbers.
By the time you return, I ________ the house.