Viruses

Q. What is the pathogenesis of AIDS virus? 5 marks

Q.

What is the first virus in the world?

Q. Name any two diseases caused by virus.

Q. is a disease caused by viruses.

1. Dengue
2. Cholera
3. Anthrax
4. Tuberculosis

Q. Explain the structure of RNA and its role.

Q.

With respect to the given statements, choose the correct option.
Statement 1: Viruses are inactive when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

1. Only statement 1 is correct.

2. Only statement 2 is correct.

3. Both the statements are correct.

4. Both the statements are incorrect.

Q.

What are viruses in biology?

Q.

Question 35 (b)
Write true (T) or false (F)
(b) Monera is divided into Archaebacteria and Eubacteria.

Q. is a disease caused by viruses.

1. Dengue
2. Cholera
3. Anthrax
4. Tuberculosis

Q. Correctly match the diseases given in column I with their respective vectors given in column II.

कॉलम-I में दिए गए रोगों का कॉलम-II में दिए गए इनसे संबंधित संवाहकों के साथ सही ढंग से मिलान कीजिए।

	Column (कॉलम)-I		Column (कॉलम)-II
a.	Plague प्लेग	(i)	Female Culex mosquito मादा क्यूलेक्स मच्छर
b.	Elephantiasis श्लीपद	(ii)	Female Anopheles mosquito मादा एनोफेलीज मच्छर
c.	Malaria मलेरिया	(iii)	Xenopsylla जेनोप्सिला
		(iv)	Yersinia pestis यर्सिनिया पेस्टिस

Select the correct option.

सही विकल्प का चयन कीजिए।

1. a(ii), b(i), c(iii)
2. a(iv), b(ii), c(iii)
3. a(iii), b(i), c(ii)
4. a(iv), b(i), c(ii)

Q. Which of the followings is/are obtained from animals?

1. Amino acids
2. Proteins
3. Fat
4. All of these

Q.

What are viruses made of?

Q.

With respect to the given statements, choose the correct option.
Statement 1: Viruses are inactive when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

1. Only statement 1 is correct.

2. Only statement 2 is correct.

3. Both the statements are correct.

4. Both the statements are incorrect.

Q. Which of the following algal cell has spirally arranged green thread-like chloroplasts?

1. Spirogyra
2. Ulothrix
3. Ulva
4. Sargassum

Q.

Viral diseases of animals include

1. Cephalitis, blue tongue, foot and mouth disease

2. Bluetongue, foot and mouth disease, rinderpest, rabies

3. Bluetongue, rinderpest, cephalitis, rabies

4. none of these

Q. AIDS virus has ..... kind of chromatin material

1. dsDNA
2. ssRNA
3. ssDNA
4. dsRNA

Q. Why a person suffering once from small pox cannot suffer from it again?
Name one disease associated with the attack of microbe on the lungs.