Home
Class 12
BIOLOGY
Assertion : Nucleic acid complexes alone...

Assertion : Nucleic acid complexes alone cannot cause diseases.
Reason : Only nucleoproteins can function as infectious agents.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
D

Microbes are extensively used in huamn welfare but they sometimes proe harmful too. Most of the huma, animal and plant diseases occur because of infection of microoganisum. Viruses are nucleoportion complexes that cause disase. Diease causing nucleic acid complexes are termed viroids. Prions are proteinaceous infectious agents.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion : Diet rich in unsaturated fat and obesity are the causes for heart disease. Reason : The proteins blocks the blood vessels.

Assertion (A) : Antibiotics do not help to cure communicable diseases. Reason (R) : They are caused by microbes.

Assertion (A) : Single cell protein from spirulina is utilized in food industries . Reason (R) : Single-cell proteins can cause allergy .

Assertion : Streptococcus pneumoniae and Haemophilus influenzae are responsible for causing infectious disease in human beings. Reason : A healthy person acquires the infection by inhaling the droplets/aerosols released by an infected person.

Assertion : Inspite of exposure to large number of infectious agents humans are resistive to diseases. Reason : Humans are able to defend against most of the foreign agents due to the ability to fight disease-causing organisms.

Assertion (A) : Hyposecretion of thyroid in adults causes myxodema Reason (R ): It is otherwise knowns as Gulls disease

Assertion: UV rays penetrate deep into the skin and cause cancer. Reason: They can cause damage to DNA.