Tag: keeping diseases away

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Questions Related to keeping diseases away

Multiple choice animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

According to the World Health Organisation, the disease which cause the death of the largest population today is

  1. AIDS

  2. Tuberculosis

  3. Malaria

  4. Ebola
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ebola virus disease is a disease of humans and other primates caused by Ebola viruses. There is currently no licensed treatment or vaccine for Ebola virus disease, although potential new vaccines and drug therapies are being developed and tested. 

Multiple choice animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

Anthrax of sheep is caused by bacteria.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Anthrax refers to a contagious disease that is caused by a bacterium called the Bacillus anthracis. The disease mainly occurs in domestic and wild animals such as goats, cow, sheep, and camels. The infection is transmitted through spores of the bacteria. Hence, anthrax in sheep is caused by bacteria.

Multiple choice animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

The following microbe is used as a biological weapon recently

  1. Phytophthora infestans

  2. Bacillus anthracis

  3. Hibiscus virus

  4. all of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Bacillus anthracis is the bacteria that causes anthrax. In 1991 Gulf War it is used by Iraq. They purchased anthrax spores from the US.
So, the correct option is 'Bacillus anthracis'
Multiple choice animal diseases economic importance of bacteria and fungi bacteria keeping diseases away biology

An animal disease that can be tranferred to humans from the diseased animal is______.

  1. Rinderpest

  2. Anthrax

  3. Mastitis

  4. Foot and mouth disease
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rinderpest is a cattle plague disease that affects only animals.

Mastitis is the inflammation of breast tissue that affects female breasts.
Foot and mouth disease is a contagious viral infection common in young children characterized by a sore mouth. Anthrax is caused by the bacteria bacillus anthracis and it is spread by contact with the bacterium's spores, which appear in infected animals.

Multiple choice plant diseases keeping diseases away biology

Pusa Swarnim a variety of Brassica is resistant to

  1. Bacterial blight

  2. White rust

  3. Curl and black rot

  4. Mosaic virus.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pusa Swarnim is a biofortified and disease-resistant variety of Brassica (mustard) specifically developed for resistance against White rust.

Multiple choice plant diseases keeping diseases away biology

Plants protect themselves from fungi by producing.

  1. Protoxins

  2. Phytoalexins

  3. Prolectins

  4. All the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protoxins-precursor of toxins.

Phytoalexins-a substance produced by plant tissues in response to contact with parasite.
Prolectins-precursor of plant lectins.
All the above can be used by plants for protection from fungi.
Correct answer-D

Multiple choice plant diseases keeping diseases away biology

Which of the following is a bacterial plant disease

  1. Tikka disease of Groundnut

  2. Downy mildew of Grapes

  3. Ring rot of Potato

  4. Red rot of Sugarcane.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ring rot of potato is caused by the bacterium Clavibacter michiganensis subsp. sepedonicus. The other options listed are fungal diseases.

Multiple choice plant diseases keeping diseases away biology

Symptoms of red rot disease appear over :

  1. Leaf tip

  2. Whole leaf

  3. Mid rib

  4. Leaf margin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The red rot of sugar cane is caused by a fungus glomurella tucumensis. Infected canes, either singly or in clumps, show a sudden orange to yellow discoloration and later the leaves gradually dry. Symptoms include Brown or reddish brown stripes appear externally at nodal region, minute red spots on the upper surface of the midrib in both the directions.

So, the correct answer is 'Mid rib'.
Multiple choice plant diseases keeping diseases away biology

Match List I (Disease) with List II (Causal Organism) and select the correct answer using the code given below the lists:

List I List II
A. Blast disease of rice 1. Ustilago nuda
B. Loose smut of wheat 2. Xanthomonas malvacearum 
C. Black arm of cotton 3. Ustilago scitaminae
D. Whip smut of sugarcane 4. Pyricularia oryzae

  1. A-4, B-1, C-2, D-3

  2. A-3, B-4, C-1, D-2

  3. A-4, B-2, C-1. D-3

  4. A-3, B-1, C-4, D-2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blast disease of rice is caused by Pyricularia oryzae (A-4). Loose smut of wheat is caused by Ustilago nuda (B-1). Black arm of cotton is caused by Xanthomonas malvacearum (C-2). Whip smut of sugarcane is caused by Ustilago scitaminae (D-3).